Initial PacketStream serialisation engine with self-documenting json header.
Tweak PacketStream format.
Refactor VideoOutput interface.
Rename many video/util headers for better organisation.
Refactor: Reorganise files into directory structure.
More filename fixes and default includes.
Add tools directory with VideoViewer application.
Add video recording ability to VideoViewer tool.
Add pango video output device backed by Pangolin PacketStream.
PacketStreamWriter: Factor into cpp file.
Added experimental packet stream reader and PangoVideo driver.