`hammer host create` flag --owner-id meaning changes depending on --owner-type value - it may mean user or usergroup id, with user assumed by default.

This command understands also --owner flag, but it always refers to User. Even if --owner-type Usergroup is passed.

--owner meaning should be consistent with --owner-id meaning and depend on --owner-type value, assuming User if --owner-type is not passed.

This was found during testing of Bug 1603219.


Steps to reproduce:
1. hammer host create --name bz1603219-usergroup --hostgroup-id 1 --organization "Default Organization" --location "Default Location" --build true --owner-type Usergroup --owner bz1603219-usergroup --domain nodhcp.local --model-id 1 --interface ip=192.168.100.32,mac=52:54:00:fb:4e:16,subnet_id=1,primary=true,managed=true,provision=true --root-password redhatredhat


Actual results:
Could not create the host:
  Error: user not found.


Expected results:
Host is created.
In new host, owner type is set to Usergroup and owner is set to usergroup with name passed in command line.


Version:
Satellite 6.5 snap 18
tfm-rubygem-katello-3.10.0.24-1.el7sat.noarch
foreman-1.20.1.10-1.el7sat.noarch
pulp-server-2.18.0-0.1.rc.el7sat.noarch
satellite-6.5.0-6.beta.el7sat.noarch
tfm-rubygem-hammer_cli_katello-0.16.0.9-1.el7sat.noarch