Linux Deployment Improvements

[HTRamsey]

• go-appimage?
• Integrate CPack packages
• GStreamer env variables are needed in a custom apprun script for AppImages
• Ensure these are bundled:
  /lib/x86_64-linux-gnu/libglib-2.0.so.0
  /lib/x86_64-linux-gnu/libgstvideo-1.0.so.0
  /lib/x86_64-linux-gnu/libgstbase-1.0.so.0
  /lib/x86_64-linux-gnu/libgstreamer-1.0.so.0
  /lib/x86_64-linux-gnu/libgobject-2.0.so.0
  /lib/x86_64-linux-gnu/libpulse.so.0
  /lib/x86_64-linux-gnu/libgstallocators-1.0.so.0
  /lib/x86_64-linux-gnu/libgmodule-2.0.so.0
  /lib/x86_64-linux-gnu/liborc-0.4.so.0
  /lib/x86_64-linux-gnu/libgthread-2.0.so.0
  /usr/lib/x86_64-linux-gnu/pulseaudio/libpulsecommon-16.1.so
  /lib/x86_64-linux-gnu/libbrotlidec.so.1
  /lib/x86_64-linux-gnu/libcap.so.2
  /lib/x86_64-linux-gnu/libbrotlicommon.so.1
  /lib/x86_64-linux-gnu/libgdk-3.so.0
  /lib/x86_64-linux-gnu/libgdk_pixbuf-2.0.so.0
  /usr/lib/x86_64-linux-gnu/gtk-3.0/modules/libxapp-gtk3-module.so
  /lib/x86_64-linux-gnu/libxapp.so.1
  /lib/x86_64-linux-gnu/libgnomekbdui.so.8
  /lib/x86_64-linux-gnu/libgnomekbd.so.8
  /usr/lib/x86_64-linux-gnu/gio/modules/libgvfsdbus.so
  /usr/lib/x86_64-linux-gnu/gvfs/libgvfscommon.so
  /usr/lib/x86_64-linux-gnu/gstreamer-1.0/libgstcoreelements.so
  /usr/lib/x86_64-linux-gnu/gstreamer-1.0/libgstrtsp.so
  /lib/x86_64-linux-gnu/libgstrtp-1.0.so.0
  /lib/x86_64-linux-gnu/libgstrtsp-1.0.so.0
  /lib/x86_64-linux-gnu/libgstsdp-1.0.so.0
  /lib/x86_64-linux-gnu/libgstnet-1.0.so.0
  /lib/x86_64-linux-gnu/libgstpbutils-1.0.so.0
  /lib/x86_64-linux-gnu/libgstaudio-1.0.so.0
  /lib/x86_64-linux-gnu/libgsttag-1.0.so.0
  /usr/lib/x86_64-linux-gnu/gstreamer-1.0/libgstasf.so
  /lib/x86_64-linux-gnu/libgstriff-1.0.so.0
  /usr/lib/x86_64-linux-gnu/gstreamer-1.0/libgstplayback.so
  /usr/lib/x86_64-linux-gnu/gio/modules/libgiognomeproxy.so
  /usr/lib/x86_64-linux-gnu/gio/modules/libgiolibproxy.so
  /lib/x86_64-linux-gnu/libproxy.so.1
  /lib/x86_64-linux-gnu/liblber.so.2
  /usr/lib/x86_64-linux-gnu/gio/modules/libgiognomeproxy.so
  /usr/lib/x86_64-linux-gnu/gio/modules/libgiolibproxy.so
  /lib/x86_64-linux-gnu/libproxy.so.1
  /lib/x86_64-linux-gnu/liblber.so.2
  /usr/lib/x86_64-linux-gnu/gstreamer-1.0/libgstudp.so
  /usr/lib/x86_64-linux-gnu/gstreamer-1.0/libgstrtpmanager.so
  /usr/lib/x86_64-linux-gnu/gstreamer-1.0/libgstrtp.so
  /usr/lib/x86_64-linux-gnu/gstreamer-1.0/libgstvideoparsersbad.so
  /lib/x86_64-linux-gnu/libgstcodecparsers-1.0.so.0
  /lib/x86_64-linux-gnu/libtinfo.so.6
  /lib/x86_64-linux-gnu/libgstcontroller-1.0.so.0
  /usr/lib/x86_64-linux-gnu/gstreamer-1.0/libgstva.so
  /lib/x86_64-linux-gnu/libgstcodecs-1.0.so.0
  /lib/x86_64-linux-gnu/libgstva-1.0.so.0