[16.0][MIG] fleet_vehicle_log_fuel: Migration to 16.0

[victoralmau]

Migration to 16.0

Changes done:

• [x] Squash administrative commits.
• [x] Set a lot of fields with readonly in some states.
• [x] Add buttons to change status in form view.
• [x] Auto-create a record of the vehicle when the fuel is done.
• [x] Add tests to check all use cases.

@Tecnativa TT48096

[pedrobaeza]

/ocabot migration fleet_vehicle_log_fuel

[victoralmau]

Changes done. Updated description explaining all changes that have been done.

[OCA-git-bot]

This PR looks fantastic, let's merge it! Prepared branch 16.0-ocabot-merge-pr-142-by-pedrobaeza-bump-nobump, awaiting test results.

[OCA-git-bot]

Congratulations, your PR was merged at 9e4a35370495c3773e0567b14680f2d7cc5a80b5. Thanks a lot for contributing to OCA. ❤️