Rcsbsearchapi

[DEPRECATED] Active at [rcsb-api](https://rcsbapi.readthedocs.io/en/latest/)
> Please migrate to our new and improved package, [rcsb-api](https://rcsbapi.readthedocs.io/en/latest/), which contains all the same functionalities as rcsbsearchapi and more! New features will only be added to the new rcsb-api package. For more details, see https://github.com/rcsb/py-rcsbsearchapi/issues/51.

- Add deprecation warnings to README and readthedocs
- Raise a deprecation warning upon import

- Changed facets from function to argument during execution
- Changed count from function to argument during execution
- Added support for request options: group_by, group_by_return_type, sort, return_explain_metadata, scoring_strategy
- Added automatic determination of search service for attribute queries
- Added methods to explore attribute schemas
- Updated documentation and README
- Updated schema files (version 1.47.6)

- Automatic fetching of latest schema files
- Updated local schema files (used as fallback if offline)
- Fix expected search behavior for sequence motif search

- Updated documentation
- Updated schema files

- Added support for faceted queries
- Added support for retrieving the scores of results (via `results_verbosity`)

- Added support for count queries