medium: ui_configure: fix bash completion of CIB-dependent commands
low: ui_cluster: add tab completion for commands
low: ui_corosync: tab completion for corosync ui
medium: ui_assist: Add assist sublevel (fate#314917)
The assist sublevel will hold commands that
don't map 1:1 to resources in the CIB, but
manipulate the CIB in more complex ways.

As a first command, weak-bond creates both
a dummy resource and a colocation of that
resource with a set of other resources.