Big update

Addons itself :
- (Changes) The entities tab is now 'Realistic_Colonies' instead of
'Real_Colonies'.

- (Added) human.
- (Added)human egg.
- (Added)human meat.
- Human can't eat human meat.

- (Changes) Zombies egg look like human egg.
- (Changes)Zombies are now droping human meat + headcrab meat instead of
3 headcrab meat.
- (Changes)Zombies may now spawn from combat.
- (Changes)Zombies now have there own hunger convar.

- (Changes) Melon are now killable again (i'm trying a way so they
explode when damaged.)

- (Changes) Removed a gui thing.
- (Changes) Optimized gui thing.
- (Changes) Client side vars is now clientside xD

- (Changes) Npcs may now eat human meat.
- (Changes) Npcs may now eat others npc's egg.

Code side :
- (Changes) Meat now have correct name.
- (Changes) Plant now have correct name