Update to last version of QoS specs

[defagos]

As a QoS / QoE engineering I want to be able to configure charts based on our official specifications.

Hints

Our most recent discussions.

Acceptance criteria

• The implementation has been updated to match most recent specifications.

Tasks

• [x] Update version number.
• [x] Always provide stall information.
• [x] Add media type.
• [x] Provide timestamp as player position for livestreams.
• [x] Check if we are able to extract VPN information without nasty trick or external dependency.
• [x] Send AirPlay status.
• [x] Revisit position information.
• [x] Add VPN flag.