recipe: only fill the bases when the class is named Recipe
recipe: only fill the bases when the class is named Recipe

This make it easier to subclass recipe.Recipe, reuse it in
the final Recipe class and get the bases set only for the final
class

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