setAISkill Rework
* moved to f/setAISkill
* AI skill is now set per side
* one param entry per side (not-activated = units are not touched)
Merge branch 'dev' of https://github.com/Wolfenswan/F3 into dev-AISkillRestructure

Conflicts:
	description.ext
* fixed opfor skill param
Merge pull request #254 from Wolfenswan/dev-AISkillRestructure

AI skill restructure