Fix quest cooldown not working for MCCUSTOM and RLCUSTOM types

The canQuestBeAccepted() method was missing cases for MCCUSTOM and
RLCUSTOM repeat types, causing quests with custom cooldowns to become
permanently inaccessible after first completion. Added the missing
checks using quest.customCooldown for both MC ticks and real-life
milliseconds.

src/main/java/noppes/npcs/controllers/PlayerQuestController.java

@@ -136,10 +136,14 @@ public class PlayerQuestController {
             return player.worldObj.getTotalWorldTime() - questTime >= 24000;
         } else if (quest.repeat == EnumQuestRepeat.MCWEEKLY) {
             return player.worldObj.getTotalWorldTime() - questTime >= 168000;
+        } else if (quest.repeat == EnumQuestRepeat.MCCUSTOM) {
+            return player.worldObj.getTotalWorldTime() - questTime >= quest.customCooldown;
         } else if (quest.repeat == EnumQuestRepeat.RLDAILY) {
             return System.currentTimeMillis() - questTime >= 86400000;
         } else if (quest.repeat == EnumQuestRepeat.RLWEEKLY) {
             return System.currentTimeMillis() - questTime >= 604800000;
+        } else if (quest.repeat == EnumQuestRepeat.RLCUSTOM) {
+            return System.currentTimeMillis() - questTime >= quest.customCooldown;
         }
         return false;
     }