bring code up to latest standards, move many procs to named files inside _HELPERS
no idea where to put some of these procs, help is appreciated
made more files to contain some unique code, deleted unsorted.dm, we can rest now
This PR adds the backblast element, which when attached to a gun, creates giant plumes of fire when said gun is fired. The PM9 rocket launcher that nuke ops can buy kinda sucks and even a direct hit with the standard rockets loaded isn't enough to guarantee a one-hit crit on a direct hit against an armored opponent, which sucks for how much you pay for it. In that vein, I've also buffed the standard rockets a bit, they now do 50 brute up from 30 on a direct hit, and they create flames on their explosion.
Also makes a tweak to /proc/get_turf_in_angle(), since tile coordinates start at 1,1 instead of 0,0 that proc is now clamped to min 1,1 rather than 0,0
