Updated documentation and coding standards from CameraGroundMap in preparation...

Updated documentation and coding standards from CameraGroundMap in preparation for merging CameraGroundMap changes from ipce into trunk. Fixes #3971.

git-svn-id: http://subversion.wr.usgs.gov/repos/prog/isis3/branches/ipce@6866 41f8697f-d340-4b68-9986-7bafba869bb8