Moved database storage of the world map to the Db4LocalStorage so its in the same database as in world prims are stored.

OpenSim.Storage/LocalStorageDb4o/MapStorage.cs

@@ -0,0 +1,16 @@
+using System;
+using System.Collections.Generic;
+using System.Text;
+
+namespace OpenSim.Storage.LocalStorageDb4o
+{
+    public class MapStorage
+    {
+        public float[] Map;
+
+        public MapStorage()
+        {
+
+        }
+    }
+}