The current implementation for thresholds has a massive amount of repeated code across every spec. Refactor this to:

• Have a single entry point for managing active ability thresholds (not passive -- this will happen elsewhere/later)
• • Pass in the spells, snapshot, and talents objects
• • Pass in a snowflake() function that handles specific cases about each snowflake for that spec
• Include everything currently within the for loop
• • There are some specific modification calls made for getting resource required. This will need to be standardized and/or have another function passed in to handle it.
• Do the same high-level priority checking for positioning+coloring+visibility with existing logic.
• • QUESTION: Does there need to be an extra super special case for stealth ability things for Rogue + Feral?