python-common/deployment: add bind_addrs and related type for smb

python-common/deployment: add bind_addrs and related type for smb

Add a `bind_addrs` field and `SMBClusterBindIPSpec` to the smb service
spec. If specified the `bind_addrs` field can contain one or more
SMBClusterBindIPSpec value. In JSON these values can contain either an
address `{"address": "192.168.76.10"}` or network `{"network":
"192.168.76.0/24"}`.

These specs will be used by cephadm to place the smb service only on
hosts that have IPs matching the supplied IP Address/Network values. It
will also instruct the smb services to only bind to these addresses.

A suggested future enhancement may be include an IP address range
representation for the SMBClusterBindIPSpec.

Signed-off-by: John Mulligan <jmulligan@redhat.com>