Rename titlerender.cpp to Render.cpp

This also renames titlerender.h to Render.h, and updates all references
to titlerender.cpp accordingly.

desktop_version/src/Render.h

@@ -0,0 +1,25 @@
+#ifndef RENDER_H
+#define RENDER_H
+
+#include "Graphics.h"
+#include "UtilityClass.h"
+#include "Maths.h"
+#include "Entity.h"
+#include "Map.h"
+#include "Script.h"
+
+void titlerender();
+
+void towerrender();
+
+void gamerender();
+
+void maprender();
+
+void teleporterrender();
+
+void gamecompleterender();
+
+void gamecompleterender2();
+
+#endif /* RENDER_H */