* Adding handling of TextInputClient.onConnectionClosed messages handling to Framework

* Adding more test cases for closing connection to editable_text_test

* fixing analyze error.

* Fixing analyze error in the test file

* Fixing comments on the new method

* Adding more closing connection examples.

* Indentation change

* Remove auto-add white space

* Changing the oncloseconnection behaviour to stop editing. Updating the tests

* Addressing PR comments. Added explicit log for method channnels to the tests. Added comments to the interfaces.

* add more documentation