Gun Muzzle Flash (2) (#94172)

## About The Pull Request

Continues https://github.com/tgstation/tgstation/pull/81507

Adds a directional muzzle flash to all guns (excluding suppressors,
toys, e-bow, etc).
Changes color depending on the laser/projectile.
If anything is missed, let me know.

## Why It's Good For The Game

Realism
Cool visuals
Makes sense

code/modules/capture_the_flag/ctf_equipment.dm

@@ -172,6 +172,7 @@
 	projectile_type = /obj/projectile/beam/instakill
 	e_cost = 0 // Not possible to use the macro
 	select_name = "DESTROY"
+	muzzle_flash_color = LIGHT_COLOR_BLUE
 
 /obj/projectile/beam/instakill
 	name = "instagib laser"