cephfs: let unit tests use expanded config options

Signed-off-by: Noah Watkins <noahwatkins@gmail.com>
cephfs: use Ceph topology API for getBlockLocations

Preliminary support with hard-coded CRUSH types.

Signed-off-by: Noah Watkins <noahwatkins@gmail.com>
Merge remote-tracking branch 'origin/cephfs/branch-1.0-topo' into cephfs/branch-1.0

Signed-off-by: Noah Watkins <noahwatkins@gmail.com>