Demon Timers

A fork / heavy refactor of https://wago.io/p/potato 's great work on https://wago.io/DemonTimers Main changes: - imps are displayed individually (instead of clustered by HoG cast), with very small bars - inactive imps are faded out, but still show both their maximum duration, and an estimate of how long they would last if they restarted casting right now (with a tick) Technical changes: - using a dynamic group for display - removed a lot of configuration custom options to simplify the code