[Tech debt] Parse trace stats and ability scaling from JSON files instead of hardcoded

[fribbels]

Motivation

Currently trace stats are hardcoded in DataParser and the the ability scalings in the conditionals files. While this works, it can be mistake-prone and can get unwieldy to maintain.

Objective

Parse the trace stats out of the src/data/ json files and import the ability scaling values as well.

Low priority since we've already set up most of the characters and adding more isnt too bad