in do_results:
* add --brief option on prj level:
[packagename] [repo] [arch] [buildstatus]
* filter by --status-filter <long status name>
works on prj and pkg level
in do_prjresults:
* --brief
* assume len(state)>1 as long state
core.py
* filter packages by build status
* long status handling in get_prj_results
* brief output generation in get_prj_results