Map Identify: allow users to click on Identify on map

[rssidlowski]

From the map, allow the user to click on the Identify then select a location on the map and display the resulting investigation/sample features in the list below within the range.

Alternatively, if the user selects an actual item on the map, display only that sample feature below.

[kanglu666]

identify function done: identify sample -> list associated investigation

[rssidlowski]

Verified.