Consider adding CMake macro to add ReSolve library

[pelesh]

Consider adding a CMake macro similar to the one in GridKit.

[cameronrutherford]

Would this also ecompass building proper support for both shared and static libraries?

Would be good then to maintain both shared and static builds in pipelines to test each configuration continually.

I then am going to say that testing this is blocked by #55, which is blocked by Spack PR

[pelesh]

• Spack PR seems to be in a good shape and ready to merge.
• We can build minimalistic ReSolve w/o CUDA or HIP.
• This will indeed add support for building ReSolve as a static library, but I don't think having static build in pipelines is a high priority at this time.