Add cluster-id to cluster selector

Multiple ceph clusters can have same names. So in that it
will be difficult to differentiate just from the name.
With this change, cluster-selector in both dashboard
and manage applications.

Clusters will be sorted based on their name.

Signed-off-by: Kanagaraj M <kmayilsa@redhat.com>
Merge pull request #77 from kmkanagaraj/cluster-selector-fsid

Add cluster-id to cluster selector
disable actions for readonly users

1.'Update' button in the 'Cluster Settings' page will be
  disabled.

2.OSD actions 'IN', 'OUT', 'DOWN', 'SCRUB' will be disabled.

3.Pool actions 'New', 'Update' and 'Delete' will be disabled.

This is done by looking at the 'Allow' header of the resources.

Fixes: #10072, #10073, #10074
Signed-off-by: Kanagaraj M <kmayilsa@redhat.com>