Fixing the checked variable in radio buttons (#13909)

* 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

src/sql/azdata.proposed.d.ts

@@ -274,6 +274,13 @@ declare module 'azdata' {
 		showLinkIcon?: boolean;
 	}
 
+	export interface RadioButtonComponent {
+		/**
+		 * An event called when the value of radio button changes
+		 */
+		onDidChangeCheckedState: vscode.Event<boolean>;
+	}
+
 	export interface DeclarativeTableColumn {
 		headerCssStyles?: CssStyles;
 		rowCssStyles?: CssStyles;