Compute shader/pipeline example

[lostmsu]

Something simple like adding two floating-point arrays would be nice.

[hyazinthh]

Aardvark.GPGPU has some simple and also more advanced examples (e.g., 1D scan and the corresponding unit test). The primitives in Aardvark.GPGPU use the old API with mutable input bindings. There is a new API that can make use of IUniformProvider with adaptive inputs but I'm not sure if there are any examples. Still, for the FShade side Aardvark.GPGPU should be a good reference.