Hammer CLI

Cloned from https://bugzilla.redhat.com/show_bug.cgi?id=1417015

Description of problem:

In Hammer CLI, when we create external user-group, the only input parameter
available is --auth-source-id. No option available with --auth-source as a parameter.

#hammer user-group external create --help
Usage:
    hammer user-group external create [OPTIONS]

Options:
 --auth-source-id AUTH_SOURCE_ID ID of linked authentication source
 --name NAME                     External user group name
 --user-group USER_GROUP_NAME    Name to search by
 --user-group-id USER_GROUP_ID    
 -h, --help                      print help

Version-Release number of selected component (if applicable):
foreman 1.14
hammer-cli-foreman 0.8.0

How reproducible:

# hammer auth-source ldap list                                   
---|----------|--------|------|---------------
ID | NAME     | LDAPS? | PORT | SERVER TYPE   
---|----------|--------|------|---------------
3  | AD-AUTH  |        | 389  | AuthSourceLdap
5  | IPA-AUTH |        | 389  | AuthSourceLdap
7  | rhel-idm |        | 389  | AuthSourceLdap
---|----------|--------|------|---------------

# hammer user-group  list 
---|---------
ID | NAME    
---|---------
4  | onlyview
---|---------

# hammer user-group  external list --user-group onlyview
---|-------------|------------
ID | NAME        | AUTH SOURCE
---|-------------|------------
2  | view-access | rhel-idm   
---|-------------|------------

# hammer user-group external create --auth-source-id 7 --name view-access-1 --user-group onlyview
External user group created
# 

# hammer user-group  external list --user-group onlyview
---|---------------|------------
ID | NAME          | AUTH SOURCE
---|---------------|------------
2  | view-access   | rhel-idm   
3  | view-access-1 | rhel-idm   
---|---------------|------------

# hammer user-group external create --help
Options:
 --auth-source-id AUTH_SOURCE_ID ID of linked authentication source
 --name NAME                     External user group name
 --user-group USER_GROUP_NAME    Name to search by
 --user-group-id USER_GROUP_ID    
 -h, --help                      print help

From the above we can see there is only one option to create external user-group i.e. --auth-source-id.

No option available with --auth-source-name or --auth-source as a input parameter.

Expected results:
auth-source-name or auth-source must be available as a input parameter.

Additional info:
This makes scripting the creation of external user-groups difficult as you must first parse the auth source list to find the id.