Establishing Goliath pre-attack behaviors
Work on mobs and factions
-Attempting to make mobs less laggy in the event many hostile mobs are spawned near each other by narrowing their searching by default with a new var, removes ishuman check
-Humans create a unique faction on creation, and transfer it via cloning/replica podding etc
-Created slime faction, gives slime and slime men that faction
-Simultaneous goliath tentacling will no longer stack, and goliaths now have a "tell" when they're about to strike
Merge branch 'master' of https://github.com/tgstation/-tg-station into muh_mobs
Merge pull request #6278 from Ergovisavi/muh_mobs

Mob faction cleanup / Some goliath changes / Hopefully fixing some lag