Checklist (Please check before submitting)

• I reviewed the Contributing Guide.
• I reviewed the cFS README.md file to see if the feature is in the major future work.
• I performed a cursory search to see if the feature request is relevant, not redundant, nor in conflict with other tickets.

Is your feature request related to a problem? Please describe.
Mission documentation has been cleaned up, should build with no warnings but not enforced so easy to "rot"

Describe the solution you'd like
Add mission documentation generation, build, no-warning enforcement, and upload to gh_pages in CI

Describe alternatives you've considered
None

Additional context
None

Requester Info
Jacob Hageman - NASA/GSFC