edited heli crash loot spawns

using wrecks loot spawns atm will update later
code cleanup
updated server pbo
seemed like the right thing to do
added to logging if heli crash does not have high enough chance to spawn
code cleanup
updated pbo
using ReammoBox instead of WeaponHolder

works better
updated pbo again
updated loot tables

added RarePkg and removed m4 and ak tables
updated server pbo
updated spawn chances
missed a couple chances