* [Mercs] Add Mercenary Support
# Notes
- Adds `--merc-tables` support to database dumper.
- Adds Mercenary-based repositories.
- Adds required SQL `2023_01_15_merc_data.sql` to insert the tables for those who don't already have them.
- Adds optional SQL `2023_01_15_merc_liaisons.sql` to change NPCs to the Mercenary Liaison class optionally.
* Inline.
* Trim tables_to_dump output
Co-authored-by: Akkadius <akkadius1@gmail.com>