add more docuementation and validation

[peterdudfield]

Pull Request

Description

• add more docs
• group routes
• add some validation on the site_uuids lists Helps with #129, #142

How Has This Been Tested?

• ran locally

• CI tests

• [ ] Yes

Checklist:

• [ ] My code follows OCF's coding style guidelines
• [ ] I have performed a self-review of my own code
• [ ] I have made corresponding changes to the documentation
• [ ] I have added tests that prove my fix is effective or that my feature works
• [ ] I have checked my code and corrected any misspellings

[codecov[bot]]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Comparison is base (4355e5b) 95.49% compared to head (fbf67a9) 95.57%. Report is 1 commits behind head on main.

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #147 +/- ## ========================================== + Coverage 95.49% 95.57% +0.08% ========================================== Files 11 11 Lines 644 656 +12 ========================================== + Hits 615 627 +12 Misses 29 29 ```

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