Firefighting changes

# _Firefighting Changes_

Standard firesuits are no longer invincible to being on fire. You will gain small amounts of heat through the firesuit while on fire. It takes about 27 seconds of being directly on fire in order to hit a point where you will begin to take damage. Wizard Hardsuit, ATMOS hardsuit and CE hardsuit retain full immunity to being on fire.

## _Atmos Equipment_

There are two secure closets in Atmos that contain heavier-duty firesuits that are immune to the effects of being on fire. The Atmos back mounted water tank has been improved to be much much more robust against fires, and now has three settings.

### Extinguisher:
This mode is a five tile spread, 8 tile range extinguisher. Furthermore, the refridgeration on the pack makes it cool down the air significantly more effectively than standard extinguishers. In addition, it cannot miss a tile like standard extinguishers.

### Nanofrost:
Effectively a grenade launcher, using this ability costs 100 water. You lob a projectile, which cools the air in a 3x3 area. If there is a vent in this area, it will be "frozen" (welded) shut, in the event that a vent is spewing plasma, use this method to quickly halt the incoming flow. In a 5x5 area, any tile with a hotspot in it will have its plasma converted into nitrogen. When firefighting, this can drastically alter the length of a fire's lifetime, and if the area is small enough, outright put the fire out AND handle the cleanup work for you. There is a 10 second cooldown.

### Metal Foam
It can create single metal foam tiles (up to 6, there is a cooldown) when you are adjacent to a tile. Synthesizes on its own, so you will never run out. This is to block off hull breaches temporarily while you work in an area.

## _Other misc changes_

-Extinguishers will automatically toggle their safety on when refilling from a watertank
-Fixes an issue of putting the damn watertank nozzle in other objects/closets/on tables by adding NODROP to it
-Gives a few more vars to extinguishers for fine tuning their effectiveness (power, precision, etc)
-Adds a cooling_temperature var to the water reagent, by default it cools air at the same rate it did previously