Added class for expandable tree view structure for displaying the captured drawable component in tree view format
Added activity drawable component for the selection and start drawing the selected component. Currently this feature is been moved to drawer instead of having new activity for it, as this was time consuming process
Added GPSTracker  class for handling the gps events and check for whether GPS service is set ON
Added code to upload map drawable component to server
Added activity for displaying the list of captured drawable component and few operations like show on map, select/unselect all, expand/collapse all, add new and download fucntionality
Added acitivity to display map and perform draw operation and display reference layers on map