Regen needs option(s) to limit it per character

Some 3pp rules for example limit how much healing you can do per day.

Needed for decent support:

• Record how much healing has been granted since last rest
• Cap the healing based on number or resource
  • Automatically deduct the resource

Potentially use the new PF1 API for storing stuff: https://gitlab.com/Furyspark/foundryvtt-pathfinder1/-/releases/0.77.17#api