This export is used to add a specific tattoo to a player. The tattoo object has to look the following way:
local tattoo = {
name = string, -- interal identifier from GTA
label = string, -- That's how it's called in the char creator f.e.
hashMale = string, -- Tattoo hash for male characters, e.g. "MP_Airraces_Tattoo_000_M"
hashFemale = string, -- Tattoo hash for female characters, e.g. "MP_Airraces_Tattoo_000_F"
zone = string, -- defines where the tattoo is located on the body: ZONE_TORSO, ZONE_HEAD, ZONE_LEFT_ARM, ZONE_RIGHT_ARM, ZONE_LEFT_LEG, ZONE_RIGHT_LEG
collection = string -- internal from GTA
}