combined zombie weapons into the mutator rfc, tweaked weapon attack cooldown and audio range

aight fine i updated it to work for ea26

pretty much most things got overhauled since the ea25 version

New zombie models
Added new zombie types to the enhanced multiskin
New zombie behaviour mutator that stops zombies from driving vehicles and deploying parachutes

Zombie sounds is still the same and doesn't require team voices

newmutator to allow configuring speed, health, and size of zombies

finally finished this!