ceph: update the roadmap for the rook v1.2 release
ceph: update the roadmap for the rook v1.2 release

The v1.2 release is coming up soon, so we need to solidify the
plan for what will be included in the release. Features in this list
are planned, although not guaranteed for the next release.

Signed-off-by: Travis Nielsen <a8b474fdb3f77f44446f0ab9ddca8147b09b3a9e@redhat.com>

rook/rook,rook/rook,rook/rook,rook/rook,rook/nfs,rook/nfs,rook/nfs,rook/rook