restapi: move aaa artifact to own subpackage

Topic: AAA
Bug-Url: https://bugzilla.redhat.com/show_bug.cgi?id=1120720
Change-Id: Idc08ae7bcf8d506569a30c97887bc2534d66cc61
Signed-off-by: Alon Bar-Lev <alonbl@redhat.com>