ThreadTracker + Attempt on NPC Disappearing fix

Engineered the ThreadTracker: server-embedded deadlock auditing tool, which will print error messages in case of found deadlocks (also showing all in-use locks on the time of the issue).
Changed the player's id on DB now starting from 20mil, thus preventing players from overwriting NPC/mobs with same oid in-game. Requires proper testing to see if the issue has been cleared.

src/server/maps/MapleGenericPortal.java

@@ -27,7 +27,8 @@ import scripting.portal.PortalScriptManager;
 import server.MaplePortal;
 import tools.MaplePacketCreator;
 import java.util.concurrent.locks.Lock;
-import java.util.concurrent.locks.ReentrantLock;
+import tools.locks.MonitoredEnums;
+import tools.locks.MonitoredReentrantLock;
 
 public class MapleGenericPortal implements MaplePortal {
 
@@ -117,7 +118,7 @@ public class MapleGenericPortal implements MaplePortal {
         
         if(scriptName != null) {
             if(scriptLock == null) {
-                scriptLock = new ReentrantLock(false);
+                scriptLock = new MonitoredReentrantLock(MonitoredEnums.PORTAL, false);
             }
         } else {
             scriptLock = null;