ext/wavpack/gstwavpackparse.c: Fix resyncing in push mode not stopping re-syncing...

ext/wavpack/gstwavpackparse.c: Fix resyncing in push mode not stopping re-syncing at embedded zeroes; skip garbage be...

Original commit message from CVS:
Based on patch by: Sebastian Dröge <slomo at circular-chaos.org>
* ext/wavpack/gstwavpackparse.c: (gst_wavpack_parse_sink_event),
(gst_wavpack_parse_get_upstream_length),
(gst_wavpack_parse_find_marker), (gst_wavpack_parse_resync_loop),
(gst_wavpack_parse_loop), (gst_wavpack_parse_resync_adapter):
Fix resyncing in push mode not stopping re-syncing at embedded
zeroes; skip garbage between frames in pull mode as well if
necessary; use gst_pad_query_peer_duration(); push EOS and
NEWSEGMENT event in right direction (#351659).