separated left-over code in natural_spawning.xml from nosophobia

Fixed compatibility between Barotraumatic Creature Pack

Renamed Stalker to StalkerDemonic to fix compatibility between Barotraumatic Creature Pack

Migrated all husk/zombie content to Nosophobia

update mod icon again

updated mod icon

updated Stalker torso to be deformable

completely overhauled 'Stalker'
new sprite
new animations
new effects and sounds

spawning a humanhusk no longer crashes the game
update Stalker's running animation

Fixed Swarm mission names and descriptions being undefined
Rhino Mantis will no longer camoflauge, and is purely a breaching type of enemy now.