feature(java-accessibility-checker): Create new accessibility-checker package for Java

[tombrunet]

• Other (Provide information) - New tool for java

This PR is related to the following issue(s):

• R6.3 Java accessibility-checker #1985

Testing reference:

• Automated tests run the standard test suite for Selenium and Playwright

I have conducted the following for this PR:

• I validated this code in Chrome (not FF)
• I validated this fix in my local env
• I provided details for testing
• This PR has been reviewed and is ready for test
• I understand that the title of this PR will be used for the next release notes.