Add Qualitative Scouting Feature

Having access to qualitative data when building pick lists would be helpful. Perhaps there could be a set of tags that can be selected by scouters at the end of the match. For more information on qualitative scouting and Pairwise (a qualitative scouting tool), refers to this [CD thread](https://www.chiefdelphi.com/t/pairwise-2-0-your-subjective-scouting-solution/479539?u=gcschmit).

No repository files, tests, or entry points are named. Start by reading the linked Chief Delphi Pairwise thread and tracing the existing pick-list and end-of-match scouting flow; clarify the tag model, user experience, and completion criteria with maintainers before implementation.

Written by the indexing model from the issue text.