Adds sharp and edge flags to appropriate items

Went through as many /obj/item/weapons as I could find and added sharp
and edge flags where appropriate.

Conflicts:
	code/modules/research/xenoarchaeology/finds/finds_misc.dm

code/modules/mining/mine_items.dm

@@ -64,6 +64,7 @@
 	attack_verb = list("hit", "pierced", "sliced", "attacked")
 	var/drill_sound = 'sound/weapons/Genhit.ogg'
 	var/drill_verb = "picking"
+	sharp = 1
 
 	var/excavation_amount = 100