damage flags are now defined from tg (#14050)

* 1st

* s

* d

Co-authored-by: Theos <theubernyan@gmail.com>

code/modules/projectiles/ammunition/energy/_energy.dm

@@ -1,7 +1,7 @@
 /obj/item/ammo_casing/energy
 	name = "energy weapon lens"
 	desc = "The part of the gun that makes the laser go pew."
-	caliber = "energy"
+	caliber = ENERGY
 	projectile_type = /obj/item/projectile/energy
 	var/e_cost = 100 //The amount of energy a cell needs to expend to create this shot.
 	var/select_name = "energy"