Bug 33167: Cleanup staff detail page

Bug 33167: Cleanup staff detail page

This patch begins reduing some of the extra things we are doing in
detail.pl that could easily be handled in the templates - fetching
authorised values and branches etc

It also removes a loop to find items that should be hidden, and instead
uses a searh parameter

The template changes either use item object rather than passed
variables, or utilize plugins to fetch authorised valued

Signed-off-by: David Nind <david@davidnind.com>
Signed-off-by: Katrin Fischer <katrin.fischer.83@web.de>
Signed-off-by: Tomas Cohen Arazi <tomascohen@theke.io>