[Keyboard Manager] Added in Shortcut to Key and Key to Shortcut remapping (#5070)

* Added union class

* Added key to shortcut backend implementation

* Added tests

* Added tests for CapsLock/modifier workaround for key to shortcut

* Added correct JSON loading step

* Cleaned shortcut remap code to use helper function for modifier keys

* Removed RemapKey class

* Enable Key to Shortcut in UI along with Type Shortcut in Remap key window

* Fixed orphaning and unsuccessful remap dialog

* Fixed column width

* Renamed second type key button

* Fixed Type Shortcut issues

* Fixed shortcut to key backend logic and manually tested most scenarios

* Added s2k in UI, manually verified its working

* Added one more k2s test

* Added tests for s2k

* Added tests for Caps Lock workaround in shortcut remaps

* Fixed formatting

* Fixed formatting

* Removed safety code since it can cause issues with code generated key up events

* Added test for key up scenario

* Tweaked warning text

* Tweaked text

* Tweaked text to fit in two lines

* telemetry additions

src/modules/keyboardmanager/common/KeyboardManagerCommon.vcxproj

@@ -121,6 +121,7 @@
     <ClCompile Include="trace.cpp" />
   </ItemGroup>
   <ItemGroup>
+    <ClInclude Include="ModifierKey.h" />
     <ClInclude Include="InputInterface.h" />
     <ClInclude Include="Helpers.h" />
     <ClInclude Include="KeyboardManagerConstants.h" />