Move GameScriptMirror, GameScriptSinkInfo and GameScriptSkyLayer to Scripting.

Scripting/include/GameScriptMirror.h

@@ -0,0 +1,21 @@
+#pragma once
+
+namespace sol {
+	class state;
+}
+
+struct GameScriptMirror
+{
+	short Room{ -1 };
+	int StartX{ 0 };
+	int EndX{ 0 };
+	int StartZ{ 0 };
+	int EndZ{ 0 };
+
+	static void Register(sol::state* lua);
+	GameScriptMirror() = default;
+
+	GameScriptMirror(short room, int startX, int endX, int startZ, int endZ);
+};
+
+