[Suggestion] Variable Placeholder support for skill cooldowns

Summary

Allow for placeholders to be used in skill cooldowns. When stating cooldowns in skill mechanics

Usage

Would look like

• skill{s=Example-Skill;delay=0;cooldown=<skill.var.cooldown>;sync=true} @Self

Value

More placeholder/variable support allows us to make more complex abilities.

Priority

I believe this one should be highly considered, I do not know the effort it takes to add placeholder support but I would have to assume it would be less than other features.

Implementation

Whatever magic wizardry bro, gimme gimme variable placeholder support