Added functionality for a TC to modify upkeep rate based on how many players are authed
Based on a tier system, we can set three group sizes and what percentage a player adds to the TC within that group
Setup with some very placeholder values for now for testing
Tier 0 - first 4 players add 0% to upkeep
Tier 1 - next 6 players add 2% upkeep each
Tier 2 - any further players add 4% upkeep each
This means a TC with 6 players authed will have +4% upkeep, a TC with 12 players will have +20% upkeep
When a player deauths from a TC it takes 24 hours in real time before that player is removed from the tax calculation, so authing, building and deauthing won't bypass the extra upkeep
Very, very WIP, for internal evaluation for now