Fixed ringscam2map appTests. Removed NorthAzimuth keyword from ring plane...

Fixed ringscam2map appTests. Removed NorthAzimuth keyword from ring plane projected outputs since this value is meaningless for ringplanes.

git-svn-id: http://subversion.wr.usgs.gov/repos/prog/isis3/branches/cassinirings@5143 41f8697f-d340-4b68-9986-7bafba869bb8