Swap ammo mould over to ContentAPI

Server/src/main/kotlin/api/ContentAPI.kt

@@ -1265,6 +1265,13 @@ fun setQuestStage(player: Player, quest: String, stage: Int) {
     player.questRepository.setStage(QuestRepository.getQuests()[quest]!!, stage)
 }
 
+/**
+ * Check if a quest is complete
+ */
+fun isQuestComplete(player: Player, quest: String): Boolean {
+    return player.questRepository.getStage(quest) == 100
+}
+
 /**
  * Gets a scenery definition from the given ID
  * @param id the ID of the scenery to get the definition for.