Add ability to do a point-in-polygon analysis with data from OpenSGID

[stdavis]

Give users the ability to add data from polygons from OpenSGID to the output.

[stdavis]

Laura Dahl from UDRC is very interested in this feature. She talked about being able to append political districts to students and also does a lot with small health areas. She asked that we notify her once this enhancement is complete.

[nathankota]

More interest in such a feature from Mark Mitchell of Lt. Gov's Elections Office:

This is a very cool tool! With it, I'm able to get a matched address and geocoding coordinates. Is there anything like it that can return a voting precinct based on address or X/Y?

[stdavis]

FYI...