Expose the resource management service (RMS) API

[FedericoNegri]

• Exposing RMS as a new API next to JmsApi, ProjectApi and AuthApi
• New RmsApi object with basic endpoints for evaluators, scalers, and compute resource sets. Same syntax as JmsApi and AuthApi
• Auto-generated pydantic models instead of hand-crafted marshmallow schemas + resource objects:
  • requires additional dependency: pydantic
  • inconsistent behavior wrt other apis; especially: unset fields get defaulted rather than marked as missing
• RmsApi doc already included
• Supports both pydantic v1 and v2

Checklist

Please complete the following checklist before submitting your pull request:

• I have tested these changes locally and verified that they work as intended.
• I have updated any documentation as needed to reflect these changes (if appropriate)
• I have verified that these changes to the best of my knowledge do not introduce any security vulnerabilities.
• Unit tests have been added (if appropriate)
• Test-cases have been added (if appropriate)
• Testing instructions have been added (if appropriate)