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/SettingsAPI/pch.h

@@ -0,0 +1,11 @@
+#pragma once
+
+#define WIN32_LEAN_AND_MEAN
+#define NOMINMAX
+#include <winrt/base.h>
+#include <winrt/Windows.Foundation.Collections.h>
+#include <Windows.h>
+
+#include <filesystem>
+#include <fstream>
+