Evaluate new Numba hooks to support target-specific overload

[diptorupd]

Recent discussions with Numba upstream developers have led to a proposal to add a way to do target-specific overloads in Numba.

numba/numba#6762

We need to review the PR and propose changes to numba-dppy that will make use of the new feature:

• Evaluate Glue wrappers to create @overload from split typing and lowering. numba/numba#6762
• Create a POC for numba-dppy based on Glue wrappers to create @overload from split typing and lowering. numba/numba#6762
• Review/present findings with Numba upstream community
• Finalize changes to numba-dppy.

[PokhodenkoSA]

@reazulhoque could we discuss this patch from Numba and share understanding?

[diptorupd]

I am marking this as done. We recently added target-specific overloads in the numba_dpex.experimental.DpexExpKernelTarget. As far as an evaluation goes, we are able to successfully use the feature.