Made object created by input_resource attached to a high level object.
The high level object must at least live as long as the input_resource, I used playlist, vlm or libvlc_media_player. It avoids invalid reparent of the vout, aout and sout on input changes. It breaks support for per input options used for creating vout, aout and sout (:sout= is not impacted). I will fix the vout case. It breaks invalid usages of vlc_object_find(INPUT, PARENT) used at least by : - the sout modules describe and display. - the sout statistics. - the vout splitter change - the snapshot vout display. I will fix the vout related ones.