Add a new render engine as another alternative to eevee da upbge 0.3.

[HolandonHdunto]

And the fact that upbge 0.3 materials are heavy, and it would be great to have another render engine in upbge 0.3 similar or identical to version 0.2.x, see the example of the render engine (workbench) and simple limited but light and can be exported along with the game.

amostra.mp4

Of course it seems to crash but it's because of the recorder, eevee was running at 40 - 50 fps and when added the spheres it reduced to 10 - 20 fps, and with (workbench) it was running at 59.8 fps and when added the spheres it continued running at 59.8 fps.

Although upcoming blender updates will no longer work on Windows 7.