Add some maptile options, change maptile generation from OpenSimBase to Scene

to make it more configurable.

bin/OpenSim.ini.example

@@ -222,6 +222,12 @@
 
     ;WorldMapModule = "WorldMap"
     ;MapImageModule = "MapImageModule"
+    ; Set to false to not generate any maptiles
+    ;GenerateMaptiles = "true"
+    ; Refreah (in seconds) the map tile periodically
+    ;MaptileRefresh = 0
+    ; If not generating maptiles, use this static texture asset ID
+    ;MaptileStaticUUID = "00000000-0000-0000-0000-000000000000"
 
     ; ##
     ; ## EMAIL MODULE