Add support for scraping dynamic Scouting Report in team.py

[esqew]

This PR includes functionality for reading team- and season-specific Scouting Report data from the raw HTML source.

This is being created as a draft PR because it still needs a few things:

• [x] Method documentation (added in 9ccccb8)
• [x] Sufficient test coverage (taken care of in #76 - thanks @WakeUpWaffles!)
• [x] A bit of rework on the convention for the resulting object's key names (taken care of in #76 - thanks @WakeUpWaffles!)
• [x] (Probably) some merge conflict resolution (added in 9ccccb8)

Supersedes #40