gst-plugins-base-1.0.recipe: Disable features on UWP
gst-plugins-base-1.0.recipe: Disable features on UWP

Currently none of the features that require external dependencies can
be built on UWP. This will change with time, of course.

Part-of: <https://gitlab.freedesktop.org/gstreamer/cerbero/-/merge_requests/511>

nirbheek/cerbero,nirbheek/cerbero,nirbheek/cerbero,nirbheek/cerbero,GStreamer/cerbero,GStreamer/cerbero,GStreamer/cerbero,GStreamer/cerbero,GStreamer/cerbero