Clothes now have a flash protection and tint level. If one is wearing multiple items with these modifiers they do stack.
Glasses also have a number of additional additions such as sight flags, see_invis level, and so forth.
Flash protection comes in 4 levels: Reduced, none, moderate, major.
Reduced protection, for example, means the user takes increased damaged from welding.
Moderate protection safeguards mobs from flashes, flash grenades, projectors, etc.
Major protection protects from the above as well as welding.
Tint also comes in 4 levels: None, moderate, heavy, blind
Moderate tint will apply the nearsighted overlay.
Major tint will apply the welding overlay.
Blind will apply the blindness overlay.
The end result is an attempt of less type checking. Any set of glasses may now also contain HUD glasses.
This should make a future rewrite of HUD glasses easier (could have the HUD functionality be a datum rather than separate item).
Merges the use of the is_small and mob_size into one.
Changes the species size handling to set the mob size instead of being yet another separate var to check.
