Create DotMP.GPU API

[computablee]

This is quite a big enhancement, and in my eyes, would upgrade DotMP to version 2.0. Behold:

GPU Programming with DotMP

The idea is to have an API for running C# code written with DotMP on a GPU by transpiling the CIL at runtime to HIP or CUDA. The API I have in mind is something like this:

int start = 0, length = 1_000_000;
int[] x = some_vector_initializer(length);
int[] y = some_other_vector_initializer(length);
int a = some_scalar_initializer();

DotMP.GPU.ToGPU(x, y);

DotMP.GPU.Offload(() => {
    DotMP.GPU.For(start, length, i => {
        y[i] += a * x[i];
    });
});

DotMP.GPU.FromGPU(y);

The CUDA/HIP would be built at runtime from the CIL via the .NET reflection API. This is a huge effort, and will take some time. I am looking for possible collaborators with compiler experience and intimate knowledge of the CLR. I could probably do it myself, but it is a lot of work.

Let's talk about everything from implementation details to a possible API to possible interest/concerns!

[computablee]

In progress on DotMP/v2.0.0 branch via ILGPU