Maths in config files

[Jack10270]

Description

Make it so we can write math statements in chances.json. example:
deepwounds: "lvl * 3"

• Idea must have not been suggested previously
  This idea hasnt been suggested previously

• Be detailed on what you want & make sure the idea is plausible
  This idea is possible because there is a calculator plugin on poggit it can combined into piggyce plugin

Extra Information

This idea will take piggyce to the next level because it provides more configurable options to users. The user can set custom chances and chances can be scaled on what the user finds to be a suitable value.