Remove is_globally_unique rule from messages, where it does not make sense

[ClemensLinnhoff]

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Removed rule is_globally_unique from messages, where a globally unique ID does not make any sense.

Some IDs depend on the scenario, e.g. object IDs in Ground Truth. Some IDs depend on the map, e.g. lane IDs. And some IDs depend on the sensor setup, e.g. sensor IDs.

I can't think of a reason, why there shouldn't be a moving object with ID 0, a lane with ID 0 and a sensor with ID 0. Therefore, I removed the is_globally_unique rule from every message, that is not a ground truth object.

Take this checklist as orientation for yourself, if this PR is ready for the Change Control Board:

• [x] My suggestion follows the style and contributors guidelines.
• [x] I have taken care about the message documentation and the fields and enums documentation.
• [x] I have done the DCO signoff.
• [x] My changes generate no errors when passing CI tests.
• [x] I have successfully implemented and tested my fix/feature locally.
• [x] Appropriate reviewer(s) are assigned.