unittest kernels

[9il]

We need a simple way to write GPU unittests for small projects.

[thewilsonator]

I think this will come naturally as we get the library to be easy to use. I suspect the best way would be to have a string to be mixed in the tests if the library has been initialised and get a default device and queue. So you'd go:

unittest 
{
    import dcompute.testing : ensureDcomputeInitialised; // or whatever
    mixin(ensureDcomputeInitialised);
    Buffer b = initialiseFromData(getData());
    q.enqueue!someKernel(b, some, args);
}