[Updated] Smaller pocket tanks, Air Vending Machines!

[elan_oots]

This is a really simple patch, but what it does is decrease the volume of an emergency O2 tank to 1/4 the volume of a normal one. They still start with the same amount of air, so they last the same amount by default, but if you fill them all the way they won't last as long. This means pocket tanks no longer last you the whole round, instead being only used for their purpose, emergencies.

https://github.com/goonstation/goonstati...s?expand=1

PS: Sorry for having the .gitignore in the compare