added sounds for the roach

remade every thumbnail icon
added roach, the roach is resistant to poison, toxic, explosions, electricity and fire. i might make a new model for it later, right now it uses a random infected model

Added the brute
brute is very tough and does a ton of damage
added agony
agony has double health than other infected
added pure infected
pure infected is meant to be put in crowds of people, it starts an outbreak
added enhanced leaper, it has double damage, health and jump height
MADE THE INFECTION CURABLE
the infection can be treated over time with medkits
made all infected able to heal themselves and others

buffed the ugly boss a little bit

added "ugly
ugly is a boss that causes internal bleeding on visual contact, its killable and drops health and armour on death,
has high health and moves fast.
death from visual contact can cause infection
can break/move props from very far distance using its mind

fixed the hive parasite crashing bug
added vampire, the vampire can revive itself shortly after death