Sdss-target-selection

🧹 Cleanup

* Unpin `healpy` version.

🧹 Cleanup

* Tag for release of `ops_std_boss_tic`. Also includes changes and new cartons in preparation for `v0.5`.

🚀 New

* Add Yanny scrapper script.
* Add `ops_apogee_stds` carton and 0.1.2 target selection plan.

✨ Improvements

* Restore HRD cut for CB UVEX. Add SRCNUM column to UVEX.
* Remove GUVCat column output in cartons not joined with GUVCat.
* [28](https://github.com/sdss/target_selection/pull/28) Tidying up and applying carton name changes throughout.
* [27](https://github.com/sdss/target_selection/pull/27) Carton-program alignment.
* [29](https://github.com/sdss/target_selection/pull/29) Add MWM Legacy IR2Opt carton.

🚀 New

* Framework for implementing cartons against `catalogdb` and load them into `targetdb`.
* All the cartons for target selection `v0`.
* Xmatch: do not apply Q3C in phase 1.
* Xmatch: do not disable `seqscan` during phase 3.
* Xmatch: add several indexes to `Catalog` and the relational tables.
* XMatch: support weights to determine the join paths.
* Xmatch: Fix bug that prevented proper motions to be used in cross-matching.
* Xmatch: In phase 2, determine what table is larger and define `q3c_join` accordingly.
* Code to create `.create_sky_catalogue <sky catalogues>`.

🚀 New

* Basic framework. Cross-matching tools work. Target selection tools still incomplete.