Add Legend and Layer List widgets to Workforce

Idea created by kmayall on May 4, 2017

    It is great to be able to add extra layers to the Dispatcher and Worker maps.  This allows the addition of important reference data to the maps.  However, neither the Dispatcher on the web interface nor the Field Worker in the mobile app interface, can see a legend of what these layers represent.  Also, they cannot turn layers on and off.  We have tiled base maps that they would need to switch between to get different information for their work tasks.  Therefore, it would be good to add the Legend and the Layer List widgets to the Dispatcher (web) and Field Worker (app) interfaces.