This aligns with the behaviour of other ports like QT and GStreamer
deadlocks when trying to load glib shared libraries if they are in
the plugin directory.
* Update to GStreamer v1.20.3
* Fixed gst-plugins-bad * Made optional dependences features * Added webrtc feature
* webrtc dependency fixes
Set meson option 'gst_debug' to true for both debug and release configurations
Enabled dtls and srtp plugins
Fixed srtp plugin
* [gstreamer] Changed version to 1.20.4
* [gstreamer] Reworked port file
* [gst-rtsp-server] Updated to version 1.20.4
* [opencv4] Update GStreamer dependency
* [qtmultimedia] Update GStreamer dependency
* [qtmultimedia] Enabled AVFoundation (part of the Apple Frameworks)
* [qtbase] Fix PCRE2 static linking for GLib
* Added versions
Co-authored-by: Gerard Ryan <gerard.ryan@immersaview.com>
Co-authored-by: David Ely <david.ely@immersaview.com>
