Conjure Spell change to support kill passives

If a kill passive tries to conjure an item, this allows it to target the entity in the specific event it dies and conjure the items accordingly.

src/com/nisovin/magicspells/spells/instant/ConjureSpell.java

@@ -319,7 +319,10 @@ public boolean castAtEntity(Player caster, LivingEntity target, float power) {
 
 	@Override
 	public boolean castAtEntity(LivingEntity target, float power) {
-		if (!(target instanceof Player)) return false;
+		if (!(target instanceof Player)) {
+			castAtLocation(target.getLocation(), power);
+			return true;
+		}
 		conjureItems((Player)target, power);
 		return true;
 	}