dmap: support libdmapsharing-4.0 API

Add support for libdmapsharing's 4.0 API without removing support for
the earlier API. The newer version takes precedence if both versions
exist on the build host.

Signed-off-by: W. Michael Petullo <mike@flyn.org>
1 job for libdmapsharing4 in 3 minutes and 1 second (queued for 2 seconds)
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Status Job ID Name Coverage
  Test
passed #494403
build_stable

00:03:01