Adds equip skill system mechanic to actors.
This plugin adds equip skill mechanic to all actors. Each time an actor learn a new skill, that skill will be added to his/her "Skill Pool". That actor can access all the skills in their Skill Pool and equip some of those skills into their "Skill Slots".
All actors can only use the skills equipped in their own Skill Slots. Also, only those equipped skills will show up in their batlle skill window.
Maximum Skill Slots and the skill's Equip Cost can be customized.