input: Introduce basic hyprland HID classes

Implements an intermediary HID class for mice, keyboards and touch devices, removing the old structs from WLClasses.hpp

Yes, virtual ones are duplicated a bit, but will likely be de-duped once wlr_input_device is not used anymore.

src/devices/Keyboard.hpp

@@ -0,0 +1,24 @@
+#pragma once
+
+#include "IKeyboard.hpp"
+
+class CKeyboard : public IKeyboard {
+  public:
+    static SP<CKeyboard>  create(wlr_keyboard* keeb);
+
+    virtual bool          isVirtual();
+    virtual wlr_keyboard* wlr();
+
+  private:
+    CKeyboard(wlr_keyboard* keeb);
+
+    wlr_keyboard* keyboard = nullptr;
+
+    void          disconnectCallbacks();
+
+    DYNLISTENER(destroy);
+    DYNLISTENER(key);
+    DYNLISTENER(modifiers);
+    DYNLISTENER(keymap);
+    DYNLISTENER(repeatInfo);
+};