Ability for zombie gamemode

[Lukasbr (SoDeTeste)]

A similar concept of ability is already under development

@wiki

Necromancer

Not yet available - currently in testing

Necromancer uses souls. Souls are gained via kills. The Necromancer wields an army of undead skeletons. Create Skeleton spawners to spawn waves of skeletons to destroy the horde, or create them out of thin air in a pinch when you desire. Some enemies killed by your undead will become undead flesh, fighting against the horde and multiplying your army.