Fixes 7802 - ensure that qpidd and user and group are created

Related pull-requests that fix  #7802
https://github.com/Katello/puppet-katello/pull/45
https://github.com/Katello/puppet-katello_devel/pull/26
https://github.com/Katello/puppet-qpid/pull/11
Since this is not likely to be used outside of the qpid module itself, we might as well place these as params on init.pp or not as params at all (and leave them unconfigurable by a user)