* WIP changes
* Fix tests, merge conflict and trigger once behavior
* Update yml
* Change test strings to be consts
* Fix total damage types and classes triggers
* Simplify damage trigger logic, move state to Threshold
* Update outdated code and docs
* Change the name of IBehavior back to IThresholdBehavior
* Change human gibbing to trigger at 400 brute damage
* Change gibbing from brute to blunt damage
* Fix one (1) typo
* Add damage class trigger test
* Add missing nullable enable to thresholds
