Plugin no longer compatible - Compiling for iOS 11

[rgbaman]

Using Capacitor 3 which targets iOS 12 and above (the last three iOS versions), this plugin is no longer supported as it requires iOS 11 according to the Plugin.swift file.

Error:

Compiling for iOS 11.0, but module 'Capacitor' has a minimum deployment target of iOS 12.0: /Users/me/Library/Developer/Xcode/DerivedData/App-fagvejonowsphfanxptpzbgafzge/Build/Products/Debug-iphonesimulator/Capacitor/Capacitor.framework/Modules/Capacitor.swiftmodule/x86_64-apple-ios-simulator.swiftmodule

Changing the target in the podspec clears the Xcode issue, however, it's not possible to implement any of the interfaces correctly.

I think this needs upgrading for use in Capacitor 3.