Description of problem:
Bug #1260697 introduced ability to set content source for host via hammer. However, it's currently not possible to see what exactly was set, 'Content Source' field is not returned by 'host info' command.

Version-Release number of selected component (if applicable):
Satellite 6.3.0 Snap 13

How reproducible:
Always

Steps to Reproduce:
1. Create a host, specify content source:
hammer host create --medium-id="44" --ip="##.###.##.##" --location-id="2" --operatingsystem-id="2" --domain-id="1" --partition-table-id="87" --content-source-id="1" --mac="76:c6:19:18:42:87" --architecture-id="1" --organization="sRfrD2" --name="JidqoOmJgX" --root-password="uIBJLylU"
Message,Id,Name
Host created,37,jidqoomjgx.example.com

2. Attempt to verify whether content source was actually set by using 'host info' command
hammer host info --id="37"

Actual results:
Content source is absent in output:
Id:                       37
Name:                     jidqoomjgx.example.com
Organization:             sRfrD2
Location:                 Default Location
Puppet CA Id:             
Puppet Master Id:         
Cert name:                jidqoomjgx.example.com
Managed:                  yes
Installed at:             
Last report:              
Network:                  
    IP:     ##.###.##.##
    MAC:    76:c6:19:18:42:87
    Domain: example.com
Network interfaces:       
 1) Id:          39
    Identifier:  
    Type:        interface (primary, provision)
    MAC address: 76:c6:19:18:42:87
    IP address:  ##.###.##.##
    FQDN:
Operating system:         
    Architecture:           x86_64
    Operating System:       RedHat 7.3
    Build:                  yes
    Medium:                 hJGrRT
    Partition Table:        Kickstart default
    Custom partition table:
Parameters:               

Additional info:          
    Owner Id:   3
    Owner Type: User
    Enabled:    yes
    Comment:
Content Information:      
    Content View:          
    Lifecycle Environment: 
    Applicable Packages:   
    Upgradable Packages:   
    Applicable Errata:     
        Enhancement: 
        Bug Fix:     
        Security:
Subscription Information: 
    UUID:            
    Last Checkin:    
    Service Level:   
    Release Version: 
    Autoheal:        
    Registered At:
Host Collections:         
 1) Id:   
    Name:

Expected results:
Content source is present in output


Additional info: