Two more drugs

Adds:
- Jenkem
- Cat Drugs

Jenkem makes the user touch fuzzy and get dizzy. Also has 50% chance of dealing small tox damage.

Cat drugs work like hyperzine except they make the user meow and hiss. Novelty more then anything.

This check is in the wrong place or shouldn't be here at all (it's kind of pointless to check if a mob exists after checking if its species name is "Tajaran")