refactor: Renderer (#694)

* Simplified SwapCHain, Device and DeviceContext pointers
* Added DX and WndProc callback registration
* Cleaned up GUI code
* Optimised Mouse Toggle

src/views/view_gta_data.cpp

@@ -12,7 +12,7 @@ namespace big
 
 		if (g_gta_data_service->cache_needs_update())
 		{
-			g_gui.m_opened = true;
+			g_gui->toggle(true);
 			ImGui::OpenPopup("Game Cache");
 		}