Providing Docker packages and a Dockerfile for numba-dpex

[diptorupd]

Providing a Dockerfile that creates an environment with all dependencies will help collaborators and users of numba-dpex to quickly setup a working environment to build and test numba-dpex.

The soda-inria group has a Dockerfile (https://github.com/soda-inria/sklearn-numba-dpex/blob/main/docker/Dockerfile) that sets up all needed dependencies from all dpex packages: dpnp, dpctl and numba-dpex and then builds these three packages from source. We can use that Dockerfile as a basis to create a Dockerfile for numba-dpex.

The Dockerfile should achieve the following:

• Install all needed driver and runtime dependencies
• Build dpnp and dpctl from source and install them
• Install the needed llvm-spirv binary from dpcpp (like done in soda-inria/sklearn-numba-dpex)

Once that is done, we should be able to clone numba-dpex and build and run it in the Docker container.