* added integration tests

* added basic integration tests

* updated integration tests

* continued integration tests

* added unit test file

* Move each permission request to its own private method

* Add unit tests and fake web permission handler plugin

* added unit tests for camera and microphone

* Updated documentation files

* Create superclass web_handler.dart

* Use OOP delegation pattern for web_handler

* Change web_handler.dart to web_delegate.dart

* Make WebDelegate class initialization lazy

* Create unit test for each method and permission

* removed redundant integration_test module

* remove redundant test_driver module

* Revert unneeded files and add api docs

* Add geolocation to web permission_handler

* Formatted web_delegate.dart

* Avoid swallowing request permission exception

* Replace UnimplementedError with UnsupportedError for requestPermissions method

Co-authored-by: Maurits van Beusekom <maurits@baseflow.com>

* Make WebDelegate instance variables private

---------

Co-authored-by: Victor Sanni <victorsanni@google.com>
Co-authored-by: Maurits van Beusekom <maurits@baseflow.com>