Observation Workflow Status, Part 1

[tpolecat]

I'd like to merge this one half-baked so @toddburnside can take advantage of the more accurate ObservationValidation codes. Thus far nothing new is actually in use. I will indicate in comments where the interesting bits are.

PR:

• Updates core to get newer, more fine-grained ObservationValidation codes.
• Creates a new ObservationWorkflowService that incorporates obs validation, in an attempt to make ObservationService more manageable. Validations related to configuration requests are now more precise.
• The only new logic here is in the executionState and workflowStateAndTransitions methods, which are thus far unused and will be tested once the results are available in the schema.

[tpolecat]

Ok this is updated to use the new ObservationValidationCodes like I said, but there was a bincompat change so I also need to update upstream stuff.

[swalker2m]

there was a bincompat change so I also need to update upstream stuff

I managed to get the ODB up to core 0.106.1 with the change you need and all the dependencies aligned. I think you can rebase and import lucuma.core.enums.ObservationExecutionState where it was coming from lucuma.odb.data and it should be good.