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

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