Noproj will now utilize the NaifKeywords object, when available, for some...

Noproj will now utilize the NaifKeywords object, when available, for some keywords that have previously been in the instrument group. Noproj will also delete extra/unnecessary keywords from the Kernels and NaifKeywords areas of the labels. Fixes #1094.

git-svn-id: http://subversion.wr.usgs.gov/repos/prog/isis3/trunk@4760 41f8697f-d340-4b68-9986-7bafba869bb8