common: refactor common library pt2 (#8588)

- remove common lib
- split settings, remove common-md
- move ipc interop/kb_layout to interop
- rename core -> settings, settings -> old_settings
- os-detect header-only; interop -> PowerToysInterop
- split notifications, move single-use headers where they're used
- winstore lib
- rename com utils
- rename Updating and Telemetry projects
- rename core -> settings-ui and remove examples folder
- rename settings-ui folder + consisent common/version include

src/common/UnitTests-CommonLib/UnitTestsVersionHelper.cpp

@@ -1,6 +1,6 @@
 #include "pch.h"
 
-#include "VersionHelper.h"
+#include <common/version/helper.h>
 
 using namespace Microsoft::VisualStudio::CppUnitTestFramework;