Add a test-case for various %files manifest globbing scenarios

Add a test-case for various %files manifest globbing scenarios

- In particular (aside from basics working) we're interested in
  the broken symlink behavior: at least glibc and Solaris have
  a weird glob() which doesn't return broken symlinks at all,
  yet we need to be able to package them (and that's why rpm
  carries its own copy of a differently broken, old glibc glob)
- Also test for directory-only match (RhBug:505995 cases)