FrankenGL

The next step is to cover multiple platforms and so multiple render APis.  Vulkan 1.0, OpenGL 4.4 and OpenGL 4.0 are supported and I tried Linux, again. But this time, using WSL2 under Windows. After some steps of installation DEMETER was able to run but only with OpenGL 4.0 API.  And here comes the surprise:   the version of the renderer is OpenGL from Mesa for Ubuntu while the vendor is Microsoft and the renderer itself an Intel UHD via Direct3D12. I guess, I may name this solution as a Frankenstein OpenGL driver.