Panoptes-data

- Update to pydantic v2 including pydantic-settings.
- CLI improvements.

- Added ability to download metadata for a unit for a range of data via cli.
- Fix ``search_observations`` so it ignores ``status`` column by default.

- Allow for query of image metadata before download.
- Handle image download exceptions better.

- Added basic cli interface for download images and metadata for observations.
- Fixed install dependencies.

- Observation search available via ``panoptes.data.search.search_observations``.
- ``ObservationInfo`` for working with observation data and metadata.