Improve Mixins class #100
Description
- Add modification context chain (list of prior mixins that were applied and optional identification context)
- "Interrupt" system where functions can be added to dynamically interject after a condition matches when a certain mixin has been applied, offering an alternative path to coordinating consistent priority values between all mixin suppliers
- Populate context object with some props by default:
initialValue,priorMixins,mixinsRemaining,config