WebUI: Add hyphenate versions of Host(Role) Based strings
    
    The hyphenated forms are less ambiguous and easier to read.
    (For more grammar background, see for example
    "Hyphenate Complex Adjectives" in http://stylepedia.net/
    Grammar-Hyphenation )
    
    https://pagure.io/freeipa/issue/6582
    
    Reviewed-By: Felipe Volpone <fbarreto@redhat.com>