API: Use message-per-value for apihelp-query+linkshere-param-prop

API: Use message-per-value for apihelp-query+linkshere-param-prop

Use message-per-value for message
apihelp-query+linkshere-param-prop/
apihelp-query+transcludedin-param-prop/
apihelp-query+redirects-param-prop/
apihelp-query+fileusage-param-prop to allow smaller strings for
translation.
Each prop in a message also will show up a new parameter on the help
page without the adjust of the translation (but than in english instead
of fully skip it).

Change-Id: Ie8d8d9c2dd1132767e0f4b2ea907e116e2a18790