Moved the server_groups to the new API.

Change-Id: Ied7bd6f56e277f0c5efcd5ba028765f9be65050f

Currently, the 'Host Status' field is shown only for 'server show' but
not for 'server list'. The host_status can be helpful for users who are
having issues with servers that show a status of ACTIVE, as it can show
a hint about the compute host status when nova policy is configured to
allow it.

Story: 2009689
Task: 44003

Change-Id: I6209cf52044218b7b32ab2fa5712574f12ba2f5f

currently this double-private method of a dependency library
is used in several places (openstack.cloud._utils._is_uuid_like)

openstacksdk deliberatly chose not to depend on oslo.utils to keep
dependenies to the minimum, so it just copied several methods from it,
including the is_uuid_like.

python-openstackclient however already depends on oslo.utils, so
using the public method from oslo.utils should be preferred
and more stable.

Change-Id: I578ffa36ffb00c9d47ee12a149313201973edd32

In order to improve the convenient of use,
columns corresponding to the "--long" option has been added
so that it can be used in the filter.
Currently filterable columns include the following:
'ID', 'Name', 'Status', 'Networks', 'Image', 'Flavor'.

Story: 2009150
Task: 43113
Change-Id: I6760ca5da0e3707d1d746ae5eeec7d9162020d15

Add a column with security groups name for
--long option on server list.

Change-Id: I7062f224e18c3c8ac96a06d7ce97f9fab473bdb9

The 'openstackclient.compute.v2.server' module is getting rather large.
The server migration commands don't need to be in there. Move them.

Change-Id: I8b2600cfd9f8e37d3093c52c7222d85e84e7fc89
Signed-off-by: Stephen Finucane <sfinucan@redhat.com>

The nova API doesn't allow you to retrieve migration records by UUID,
only ID. This is confusing. Work around it by listing records and
filtering this list.

Change-Id: I932c9c70420e85056509513e005bb78168e70611
Signed-off-by: Stephen Finucane <sfinucan@redhat.com>