Support additional headers in WebSocketClient

[MSchmidt]

Allows users of this library to add headers to the opening WebSocket request.

Example usage:

char* socketHeaders[2][2];
socketHeaders[0][0] = "Cookie";
socketHeaders[0][1] = "mycookie=withValue";
socketHeaders[1][0] = "Origin";
socketHeaders[1][1] = "http://www.example.com";

client.begin("/socket", socketHeaders, 2);

[CLAassistant]

All committers have signed the CLA.

[github-actions]

Memory usage change @ 4a66056

Board	flash	%	RAM for global variables	%
arduino:samd:mkr1000	🔺 0 - +40	0.0 - +0.02	0 - 0	0.0 - 0.0

Click for full report table

Board	examples/BasicAuthGet flash	%	examples/BasicAuthGet RAM for global variables	%	examples/CustomHeader flash	%	examples/CustomHeader RAM for global variables	%	examples/DweetGet flash	%	examples/DweetGet RAM for global variables	%	examples/DweetPost flash	%	examples/DweetPost RAM for global variables	%	examples/HueBlink flash	%	examples/HueBlink RAM for global variables	%	examples/PostWithHeaders flash	%	examples/PostWithHeaders RAM for global variables	%	examples/SimpleDelete flash	%	examples/SimpleDelete RAM for global variables	%	examples/SimpleGet flash	%	examples/SimpleGet RAM for global variables	%	examples/SimpleHttpExample flash	%	examples/SimpleHttpExample RAM for global variables	%	examples/SimplePost flash	%	examples/SimplePost RAM for global variables	%	examples/SimplePut flash	%	examples/SimplePut RAM for global variables	%	examples/SimpleWebSocket flash	%	examples/SimpleWebSocket RAM for global variables	%
arduino:samd:mkr1000	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	40	0.02	0	0.0

Click for full report CSV

Board,examples/BasicAuthGet<br>flash,%,examples/BasicAuthGet<br>RAM for global variables,%,examples/CustomHeader<br>flash,%,examples/CustomHeader<br>RAM for global variables,%,examples/DweetGet<br>flash,%,examples/DweetGet<br>RAM for global variables,%,examples/DweetPost<br>flash,%,examples/DweetPost<br>RAM for global variables,%,examples/HueBlink<br>flash,%,examples/HueBlink<br>RAM for global variables,%,examples/PostWithHeaders<br>flash,%,examples/PostWithHeaders<br>RAM for global variables,%,examples/SimpleDelete<br>flash,%,examples/SimpleDelete<br>RAM for global variables,%,examples/SimpleGet<br>flash,%,examples/SimpleGet<br>RAM for global variables,%,examples/SimpleHttpExample<br>flash,%,examples/SimpleHttpExample<br>RAM for global variables,%,examples/SimplePost<br>flash,%,examples/SimplePost<br>RAM for global variables,%,examples/SimplePut<br>flash,%,examples/SimplePut<br>RAM for global variables,%,examples/SimpleWebSocket<br>flash,%,examples/SimpleWebSocket<br>RAM for global variables,%
arduino:samd:mkr1000,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,40,0.02,0,0.0

[github-actions]

Memory usage change @ a142ab2

Board	flash	%	RAM for global variables	%
arduino:samd:mkr1000	🔺 0 - +40	0.0 - +0.02	0 - 0	0.0 - 0.0

Click for full report table

Board	examples/BasicAuthGet flash	%	examples/BasicAuthGet RAM for global variables	%	examples/CustomHeader flash	%	examples/CustomHeader RAM for global variables	%	examples/DweetGet flash	%	examples/DweetGet RAM for global variables	%	examples/DweetPost flash	%	examples/DweetPost RAM for global variables	%	examples/HueBlink flash	%	examples/HueBlink RAM for global variables	%	examples/PostWithHeaders flash	%	examples/PostWithHeaders RAM for global variables	%	examples/SimpleDelete flash	%	examples/SimpleDelete RAM for global variables	%	examples/SimpleGet flash	%	examples/SimpleGet RAM for global variables	%	examples/SimpleHttpExample flash	%	examples/SimpleHttpExample RAM for global variables	%	examples/SimplePost flash	%	examples/SimplePost RAM for global variables	%	examples/SimplePut flash	%	examples/SimplePut RAM for global variables	%	examples/SimpleWebSocket flash	%	examples/SimpleWebSocket RAM for global variables	%
arduino:samd:mkr1000	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	40	0.02	0	0.0

Click for full report CSV

Board,examples/BasicAuthGet<br>flash,%,examples/BasicAuthGet<br>RAM for global variables,%,examples/CustomHeader<br>flash,%,examples/CustomHeader<br>RAM for global variables,%,examples/DweetGet<br>flash,%,examples/DweetGet<br>RAM for global variables,%,examples/DweetPost<br>flash,%,examples/DweetPost<br>RAM for global variables,%,examples/HueBlink<br>flash,%,examples/HueBlink<br>RAM for global variables,%,examples/PostWithHeaders<br>flash,%,examples/PostWithHeaders<br>RAM for global variables,%,examples/SimpleDelete<br>flash,%,examples/SimpleDelete<br>RAM for global variables,%,examples/SimpleGet<br>flash,%,examples/SimpleGet<br>RAM for global variables,%,examples/SimpleHttpExample<br>flash,%,examples/SimpleHttpExample<br>RAM for global variables,%,examples/SimplePost<br>flash,%,examples/SimplePost<br>RAM for global variables,%,examples/SimplePut<br>flash,%,examples/SimplePut<br>RAM for global variables,%,examples/SimpleWebSocket<br>flash,%,examples/SimpleWebSocket<br>RAM for global variables,%
arduino:samd:mkr1000,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,40,0.02,0,0.0

[ddaydd]

Hello, can you merge this ? I need additional headers in WebSocketClient :p

[github-actions]

Memory usage change @ a8ccd15

Board	flash	%	RAM for global variables	%
arduino:samd:mkr1000	🔺 0 - +40	0.0 - +0.02	0 - 0	0.0 - 0.0

Click for full report table

Board	examples/BasicAuthGet flash	%	examples/BasicAuthGet RAM for global variables	%	examples/CustomHeader flash	%	examples/CustomHeader RAM for global variables	%	examples/DweetGet flash	%	examples/DweetGet RAM for global variables	%	examples/DweetPost flash	%	examples/DweetPost RAM for global variables	%	examples/HueBlink flash	%	examples/HueBlink RAM for global variables	%	examples/PostWithHeaders flash	%	examples/PostWithHeaders RAM for global variables	%	examples/SimpleDelete flash	%	examples/SimpleDelete RAM for global variables	%	examples/SimpleGet flash	%	examples/SimpleGet RAM for global variables	%	examples/SimpleHttpExample flash	%	examples/SimpleHttpExample RAM for global variables	%	examples/SimplePost flash	%	examples/SimplePost RAM for global variables	%	examples/SimplePut flash	%	examples/SimplePut RAM for global variables	%	examples/SimpleWebSocket flash	%	examples/SimpleWebSocket RAM for global variables	%
arduino:samd:mkr1000	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	40	0.02	0	0.0

Click for full report CSV

Board,examples/BasicAuthGet<br>flash,%,examples/BasicAuthGet<br>RAM for global variables,%,examples/CustomHeader<br>flash,%,examples/CustomHeader<br>RAM for global variables,%,examples/DweetGet<br>flash,%,examples/DweetGet<br>RAM for global variables,%,examples/DweetPost<br>flash,%,examples/DweetPost<br>RAM for global variables,%,examples/HueBlink<br>flash,%,examples/HueBlink<br>RAM for global variables,%,examples/PostWithHeaders<br>flash,%,examples/PostWithHeaders<br>RAM for global variables,%,examples/SimpleDelete<br>flash,%,examples/SimpleDelete<br>RAM for global variables,%,examples/SimpleGet<br>flash,%,examples/SimpleGet<br>RAM for global variables,%,examples/SimpleHttpExample<br>flash,%,examples/SimpleHttpExample<br>RAM for global variables,%,examples/SimplePost<br>flash,%,examples/SimplePost<br>RAM for global variables,%,examples/SimplePut<br>flash,%,examples/SimplePut<br>RAM for global variables,%,examples/SimpleWebSocket<br>flash,%,examples/SimpleWebSocket<br>RAM for global variables,%
arduino:samd:mkr1000,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,40,0.02,0,0.0