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/interop/shared_constants.h

@@ -0,0 +1,18 @@
+#pragma once
+
+#include <cstdint>
+
+namespace CommonSharedConstants
+{
+    // Flag that can be set on an input event so that it is ignored by Keyboard Manager
+    const uintptr_t KEYBOARDMANAGER_INJECTED_FLAG = 0x1;
+
+    // Fake key code to represent VK_WIN.
+    inline const int VK_WIN_BOTH = 0x104;
+
+    // Path to the event used by PowerLauncher
+    const wchar_t POWER_LAUNCHER_SHARED_EVENT[] = L"Local\\PowerToysRunInvokeEvent-30f26ad7-d36d-4c0e-ab02-68bb5ff3c4ab";
+
+    // Max DWORD for key code to disable keys.
+    const int VK_DISABLED = 0x100;
+}