* Fixing radioButton checked status
* Fixed all kinds of event bugs in radio buttons
* removing uneeded checks
* Fixing the logic for radiobutton onChange event generation for all possible scenarios.
* Made small changes in radioButton logic.
* Fixing the checked variable in radio buttons
* Emitting the checked state of radio button.
* Adding onChanged event to radioButtons (exposing it)
Deprecating onClick event for radioButtons
Fixing radio button stubs
* Made some type fixes
* Firing event in checked event setter
* updating azdata-test to 1.1 in arc extension
* Some logic fixes in checked setter
* added proper typings and updated package version for azdata-data
* Renamed the event to onDidChangeCheckedState
* Fixed deprecation message
* Fixed broken Schema compare stubs
* more strict null checks in base browser code
* revert changes to radiobutton
* fix some more minor things, enable strict null check in pipelines
* formatting
* fix compile errors
* make null undefined
* more null to undefined
