Testing of 3D graphics with all computations performed on CPU

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Once we had issues of testing 3D modules because of lacking features of drivers or cards used in our testing environments (be it a real HW or a virtual machine).

Google recently published SwiftShader, a SW implementation of OpenGL ES and Direct3D 9 APIs. SwiftShader should be fast "enough" for general purposes.

Might be worth considering a weak integration for (not only?) testing.