Removed unnecessary packets and created CoreManager

src/services/CoreManager.java

@@ -0,0 +1,38 @@
+package services;
+
+import me.joshlarson.control.Manager;
+
+public class CoreManager extends Manager {
+	
+	private long startTime;
+	private EngineManager engineManager;
+	
+	public CoreManager() {
+		engineManager = new EngineManager();
+		
+		addChildManager(engineManager);
+	}
+	
+	/**
+	 * Determines whether or not the core is operational
+	 * @return TRUE if the core is operational, FALSE otherwise
+	 */
+	public boolean isOperational() {
+		return true;
+	}
+	
+	@Override
+	public boolean initialize() {
+		startTime = System.nanoTime();
+		return super.initialize();
+	}
+	
+	/**
+	 * Returns the time in milliseconds since the server started initialization
+	 * @return the core time represented as a double
+	 */
+	public double getCoreTime() {
+		return (System.nanoTime()-startTime)/1E6;
+	}
+	
+}