Add sample usage of StorageMgmt network for compute nodes

The hyperconverged-ceph.yaml environment file assumes there will be
a StorageMgmt network deployed on compute nodes. This change adds
commented examples to add such a network for the compute nodes in:
bond-with-vland, multiple-nics, single-nic-linux-bridge-vlans and
single-nic-vlans.

Change-Id: I4535cc5ea2556730f91362bd5f859e8700cd24f6