v17.7-dev33

-Update Assimp to 5.1.2 - by: @lucifer602288
-Disable culling for UI drawing(LeGo script packet doesn't follow CW winding order and any Sprite it tries to draw doesn't pass the test)
-Add option to reduce light intensity for scene where are many lights that can make scene to be overexposed(e.g. old camp in Othello Mod)
-Add some quantization to skeletal meshes to reduce bandwidth
-Revert temporarily back to bind pose normals for skeletal meshes since bone accurate normals can result in some weird glitches on some modifications
-Fix mouse cursor visibility with Union Mouse Wrapper in G1
-Force showing mouse cursor in settings