Removed .qrc file as well as /icons and /images directory and obtained legal...

Removed .qrc file as well as /icons and /images directory and obtained legal images. They can now be found in /usgs/cpkgs/isis3/data/base/icons and /images, respectively. Fixes #5105.

git-svn-id: http://subversion.wr.usgs.gov/repos/prog/isis3/branches/ipce@7989 41f8697f-d340-4b68-9986-7bafba869bb8