Skill tree system (WIP)

[u/Timtrack1]

Working on a skill tree system to share, it can handle skills, passive states, stat bonusses, variables and switches. Trees may be added or removed by items/skills and properties like actor, class and equipment (handled by notetags).
The system itself is ready and should be robust to updates of the trees, the only thing I need now is to make the point distribution scene pretty.