The footprint view widget and the control point edit widget have been...

The footprint view widget and the control point edit widget have been connected. You can modify, add, or delete a point. However, when you modify a point that already has adjusted lat/lons, the point will not move on the footprint view widget. Ken is figuring out what to do with the adjusted and apriori lat/lons. The control net editor class was also added.

git-svn-id: http://subversion.wr.usgs.gov/repos/prog/isis3/branches/ipce@5973 41f8697f-d340-4b68-9986-7bafba869bb8