packagesstore: add support for loading packages from an external repo
packagesstore: add support for loading packages from an external repo

cee1/cerbero-mac,ramaxlo/cerbero,nirbheek/cerbero,BigBrother-International/gst-cerbero,nirbheek/cerbero-old,lubosz/cerbero,GStreamer/cerbero,AlertMe/cerbero,ylatuya/cerbero,nirbheek/cerbero,ramaxlo/cerbero,EricssonResearch/cerbero,nicolewu/cerbero,ramaxlo/cerbero,shoreflyer/cerbero,nzjrs/cerbero,superdump/cerbero,brion/cerbero,nirbheek/cerbero,freedesktop-unofficial-mirror/gstreamer__sdk__cerbero,multipath-rtp/cerbero,freedesktop-unofficial-mirror/gstreamer__cerbero,lubosz/cerbero,cee1/cerbero-mac,justinjoy/cerbero,flexVDI/cerbero,BigBrother-International/gst-cerbero,fluendo/cerbero,freedesktop-unofficial-mirror/gstreamer__sdk__cerbero,shoreflyer/cerbero,ford-prefect/cerbero,shoreflyer/cerbero,atsushieno/cerbero,nzjrs/cerbero,nirbheek/cerbero,fluendo/cerbero,ikonst/cerbero,jackjansen/cerbero-2013,atsushieno/cerbero,davibe/cerbero,OptoFidelity/cerbero,jackjansen/cerbero-2013,nzjrs/cerbero,shoreflyer/cerbero,nzjrs/cerbero,brion/cerbero,OptoFidelity/cerbero,flexVDI/cerbero,GStreamer/cerbero,freedesktop-unofficial-mirror/gstreamer-sdk__cerbero,brion/cerbero,ylatuya/cerbero,EricssonResearch/cerbero,centricular/cerbero,sdroege/cerbero,freedesktop-unofficial-mirror/gstreamer__cerbero,centricular/cerbero,GStreamer/cerbero,lubosz/cerbero,justinjoy/cerbero,ylatuya/cerbero,jackjansen/cerbero,centricular/cerbero,flexVDI/cerbero,centricular/cerbero,freedesktop-unofficial-mirror/gstreamer__cerbero,EricssonResearch/cerbero,ikonst/cerbero,freedesktop-unofficial-mirror/gstreamer__sdk__cerbero,nirbheek/cerbero-old,flexVDI/cerbero,AlertMe/cerbero,jackjansen/cerbero-2013,GStreamer/cerbero,jackjansen/cerbero,ramaxlo/cerbero,davibe/cerbero,davibe/cerbero,sdroege/cerbero,justinjoy/cerbero,freedesktop-unofficial-mirror/gstreamer__sdk__cerbero,ylatuya/cerbero,fluendo/cerbero,OptoFidelity/cerbero,multipath-rtp/cerbero,nirbheek/cerbero-old,sdroege/cerbero,EricssonResearch/cerbero,AlertMe/cerbero,freedesktop-unofficial-mirror/gstreamer-sdk__cerbero,jackjansen/cerbero,OptoFidelity/cerbero,freedesktop-unofficial-mirror/gstreamer-sdk__cerbero,sdroege/cerbero,jackjansen/cerbero-2013,cee1/cerbero-mac,AlertMe/cerbero,shoreflyer/cerbero,EricssonResearch/cerbero,nicolewu/cerbero,superdump/cerbero,ramaxlo/cerbero,nzjrs/cerbero,justinjoy/cerbero,nirbheek/cerbero-old,lubosz/cerbero,brion/cerbero,atsushieno/cerbero,superdump/cerbero,ford-prefect/cerbero,AlertMe/cerbero,flexVDI/cerbero,BigBrother-International/gst-cerbero,ikonst/cerbero,multipath-rtp/cerbero,freedesktop-unofficial-mirror/gstreamer-sdk__cerbero,BigBrother-International/gst-cerbero,davibe/cerbero,BigBrother-International/gst-cerbero,brion/cerbero,multipath-rtp/cerbero,cee1/cerbero-mac,ford-prefect/cerbero,atsushieno/cerbero,fluendo/cerbero,superdump/cerbero,centricular/cerbero,freedesktop-unofficial-mirror/gstreamer-sdk__cerbero,sdroege/cerbero,jackjansen/cerbero-2013,multipath-rtp/cerbero,ikonst/cerbero,jackjansen/cerbero,atsushieno/cerbero,ford-prefect/cerbero,fluendo/cerbero,GStreamer/cerbero,ikonst/cerbero,freedesktop-unofficial-mirror/gstreamer__cerbero,nicolewu/cerbero