Created MapBLL and Business Objects

Created MapBLL and Business Objects
- GetMapScreenData(PermitKey, TOCID) - return one MapScreenBO
- Save(MapAttachmentDO, content byte()) - return MapAttachmentId
- GetMap(MapAttachmentId) - returns MapAttachmentBO
- SetMapLayer(MapAttachmentId, LayerId)
- RemoveMapLayer(MapAttachmentId, LayerId)
- GetMaps(PermitKey) - returns a list of MapAttachmentBO
- DeleteMap(MapAttachmentId) - wipes all data for that map
- GetMapsByLayer(PermitKey, LayerId) - returns a List of MapAttachmentId
- GetScreenLayers(TOCID,PermitKey) - list of TOCLayerBO
MapAttachmentBO
MapScreenBO
TOCLayerBO