Allow matrix fields on spectral and point spaces

[kmdeck]

Relaxes type restrictions and adds new methods so we can create MatrixFields for spectral spaces and point spaces
TODO: add helpful error message for printing formatted Jacobian

• Code follows the style guidelines OR N/A.
• Unit tests are included OR N/A.
• Code is exercised in an integration test OR N/A.
• Documentation has been added/updated OR N/A.

[kmdeck]

@dennisYatunin I will add some unit tests, but this seems to be working

[dennisYatunin]

Looks good to me! It'll be helpful to add a simple unit test that reflects your use case. And have you checked whether this works on GPUs? It's possible that we'll need to do some additional tinkering in ClimaCoreCUDAExt for this.

[kmdeck]

@dennisYatunin ready for a re-review! this branch was used on GPU in a clima land run, so I think it is OK on that front. additionally, if CC unit tests run on GPU, this PR also tests the addition via test/MatrixFields/flat_spaces.jl.