Feature/domeviewer update

[Tunkali]

This update contains several improvements:

• Updated the NDI package to 2.1.4-pfc.6 to improve performance and stability. This also updates the used NDI libraries to 6.1.
• Receives multi-channel audio at correct positions in VR and desktop mode
• Speaker distance is based on dome size now (speakers are aligned with the dome walls)
• Hand tracking removed for Windows builds because OpenXR in Unity currently lacks support for that (hand tracking is still available in Quest builds)
• updated to Unity 2021.3.44, including package updates