Improve CLI subcommand organisation and convert docs to Material for Mkdocs

[cortadocodes]

Contents (#738)

IMPORTANT: There is 1 breaking change.

Enhancements

• Update version compatibility table script for markdown format

Dependencies

• Add mkdocs-material
• Add mkdocs-glightbox to provide image zooming to docs
• Remove dependencies and config from old documentation
• Add tabulate for version table script

Refactoring

• 💥 BREAKING CHANGE: Replace octue twined start CLI subcommand with octue twined service start subcommand

Reversions

• Revert "REF: Remove google_crc32c warning suppression"

Other

• Convert documentation from restructured text (RST) to markdown (MD)
• Use mkdocs and Material for Mkdocs to build and theme documentation
• Document using TWINED_SERVICES_TOPIC_NAME envvar
• Disable sphinx pre-commit step
• Update CLI printout in readme
• Replace "Octue SDK" with "Twined" in docs
• Move CONTRIBUTING.md to repo root and update it

---

Upgrade instructions

💥 Replace `octue twined start` CLI subcommand with `octue twined service start` subcommand

Use octue twined service start instead of octue twined start

[codecov-commenter]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 94.05%. Comparing base (19ed977) to head (9e040ad).
⚠️ Report is 36 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #738      +/-   ##
==========================================
- Coverage   94.29%   94.05%   -0.24%     
==========================================
  Files          92       97       +5     
  Lines        3836     3868      +32     
==========================================
+ Hits         3617     3638      +21     
- Misses        219      230      +11     

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