Added Basic Parcel Support

*Created Parcel class to handle each parcel 
*Created ParcelManager class to handle the Parcel Object 
*For now, by default it is assigned to a fake avatar key and set for sale to L$0

OpenSim/OpenSim.RegionServer/RegionInfoBase.cs

@@ -19,6 +19,7 @@ namespace OpenSim
         public ulong RegionHandle;
         public ushort RegionWaterHeight = 20;
         public bool RegionTerraform = true;
+        public LLUUID RegionOwner = new LLUUID();
 
         public int IPListenPort;
         public string IPListenAddr;