[mesa-libGLU/f18] (3 commits) ...libGLU 9.0

[Adam Jackson]

Summary of changes:

  81f7ae7... Initial import (#854377) (*)
  794f6f3... add back libGLU provides for now (*)
  fd70a32... libGLU 9.0 (*)

(*) This commit already existed in another branch; no separate mail sent