Boxing techniques

Cross, jab, upper and counter.
Add boxing to styles.

Static/onmove/ondodge, techniques.
Add "SKINTIGHT" to hand wraps

Also half warmth
Add MA manual
Create Boxing.json

Very WIP, dojo.json used as template.
Update iexamine.cpp

update to include dispensable clean water from water coolers using the toilet function
Update Boxing.json
Update martial_arts_manuals.json

typo
Add headgear
Add headgear to item_group
Update item_groups.json

Add boxing gloves and headgear to sports item group.
Fix missing seperators.
Fix more seperators.
Remove superfluous seperator.
Remove superfluous seperator.
Update regional_map_settings.json

Added gym (boxing gym) to the weighted list. Dropped dojo weight back to 2-- with two martial arts buildings you've got double the chance of an MA/sports building in a given town compared to before, so you'll hopefully get one or the other at least.
Update and rename Boxing.json to boxing.json

fix suggestions, capitals, add mouthpiece to itemgroup.
Update martialarts.json

fix capitals, increase buff_duraiton of counter
Fix spelling.
Fix item IDs