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/ITouch.hpp

@@ -0,0 +1,50 @@
+#pragma once
+
+#include "IHID.hpp"
+#include "../helpers/WLListener.hpp"
+#include "../macros.hpp"
+#include "../helpers/Vector2D.hpp"
+
+struct wlr_touch;
+
+class ITouch : public IHID {
+  public:
+    virtual uint32_t   getCapabilities();
+    virtual bool       isVirtual() = 0;
+    virtual wlr_touch* wlr()       = 0;
+
+    struct SDownEvent {
+        uint32_t timeMs  = 0;
+        int32_t  touchID = 0;
+        Vector2D pos;
+    };
+
+    struct SUpEvent {
+        uint32_t timeMs  = 0;
+        int32_t  touchID = 0;
+    };
+
+    struct SMotionEvent {
+        uint32_t timeMs  = 0;
+        int32_t  touchID = 0;
+        Vector2D pos;
+    };
+
+    struct SCancelEvent {
+        uint32_t timeMs  = 0;
+        int32_t  touchID = 0;
+    };
+
+    struct {
+        CSignal down;
+        CSignal up;
+        CSignal motion;
+        CSignal cancel;
+        CSignal frame;
+    } touchEvents;
+
+    std::string hlName      = "";
+    std::string boundOutput = "";
+
+    WP<ITouch>  self;
+};