Rethink calibration classes

[bruno-f-cruz]

Initially, we tried to ORM against aind-data-schema. Unfortunately, aind-data-schema v2 completely re-hauled calibration. Instead of trying to chase after the target package, and since we are already maintaining mapping logic, we are now in a place where we can decide to use something a bit less clunky. This will obviously be a breaking change.

[bruno-f-cruz]

Another note here is the that 'calibration' should likely be merged with 'additional_settings'. If people need to extend the settings locally, the solution is to extend the class itself with additional fields