Pylegendmeta

What's Changed
* Switched `select` JSONL field to `category` by ggmarshall in https://github.com/legend-exp/pylegendmeta/pull/21
* Make the expected JSONL exactly `validity.jsonl` by gipert in https://github.com/legend-exp/pylegendmeta/pull/22


**Full Changelog**: https://github.com/legend-exp/pylegendmeta/compare/v0.6.3...v0.7.0

**Full Changelog**: https://github.com/legend-exp/pylegendmeta/compare/v0.6.2...v0.6.3

What's Changed
* Fixes for read_from and trim_null and added tests by ggmarshall in https://github.com/legend-exp/pylegendmeta/pull/20


**Full Changelog**: https://github.com/legend-exp/pylegendmeta/compare/v0.6.1...v0.6.2

**Full Changelog**: https://github.com/legend-exp/pylegendmeta/compare/v0.6.0...v0.6.1

What's Changed
* Complete `LegendSlowControlDB.status()` implementation, fix merging of dict-like structures by gipert in https://github.com/legend-exp/pylegendmeta/pull/16
* Bump SQLAlchemy version bound to `>=2` by gipert in https://github.com/legend-exp/pylegendmeta/pull/19
* Added `$_` -> CWD substitution function and changed `JsonDB.map()` to also be able to remap with non-unique keys by ggmarshall in https://github.com/legend-exp/pylegendmeta/pull/17


**Full Changelog**: https://github.com/legend-exp/pylegendmeta/compare/v0.5.0...v0.6.0

What's Changed
* Merging of `JsonDB` items, retrieving DAQ channel status by gipert in https://github.com/legend-exp/pylegendmeta/pull/14
* Draft `LegendSlowControlDB.status()` by gipert in https://github.com/legend-exp/pylegendmeta/pull/15


**Full Changelog**: https://github.com/legend-exp/pylegendmeta/compare/v0.4.0...v0.5.0