Adds the B.S.G (#15798)

* Adds the 100% original and serious BSG

* Adds sprites

* prevents divide by zero

* Adds to protolathe, shield from projectiles, prevents hitting through walls

* adds sprites for inhands, pain, and suffering

* Finished the gun sprites.

* Adds admin version, sound effect, visual

* moves chain to base projectile, adds shitty sprite for bsg explosion

* Fixes it, maybe.

* I hate merge conflicts, gun sprites are back

* I need this, it seems.

* re-adds sprites back

* Prevents turrets from working with BSG, adds a variable for it, heavily nerfs the BSG stun to be more of a trip

* Apply grammer and spaceing suggestions from code review

Co-authored-by: dearmochi <shenesis@gmail.com>

* Makes the code clearer, use update icon, fix shaded charge

* Better inhands, tweaked base sprite

* Better explosion effect, mochi suggestion, PR ready

* Accidently removed this

* I did not intend to put this in, I discarded this change

* Update settings.json

* Spelling and return removal

Co-authored-by: AffectedArc07 <25063394+AffectedArc07@users.noreply.github.com>

* Removes spawn, makes it a callback

* Lowercase states

Co-authored-by: dearmochi <shenesis@gmail.com>
Co-authored-by: AffectedArc07 <25063394+AffectedArc07@users.noreply.github.com>

code/modules/mining/lavaland/loot/tendril_loot.dm

@@ -381,7 +381,6 @@
 	damage_type = BRUTE
 	hitsound = 'sound/effects/splat.ogg'
 	weaken = 3
-	var/chain
 
 /obj/item/projectile/hook/fire(setAngle)
 	if(firer)