Fixed the mod to work with the new VJ base update again

Fixed the mod to work with the new VJ base update

Fixed zombigaunt energy ball being invisible if it spawns out of sight of the player
Added an option to make the zombigaunt energy ball a bit easier to avoid

Vortigaunts now always use a modded model that allows the custom animations added by this mod to (hopefully) play correctly no matter what.

Fixed vortigaunts falling through the ground sometimes when spawned

Should work fine with Half Life 2 Animation Fix now.
Both free vortigaunts and vortigaunt slaves can be infected by headcrabs. The resulting zombigaunt will keep the shackles if the vortigaunt had any.