Add dynamic audio geometry support

[Flameborn]

Hello,

As the title says, it would be great to have dynamic geometry support for game audio, so that moving objects can be properly spatialised within a created scene. See the guide at https://valvesoftware.github.io/steam-audio/doc/capi/guide.html#dynamic-geometry

[bjornbytes]

Agreed, I'll try to add this when I upgrade phonon to v4 (hopefully soon)

[Flameborn]

Very much appreciated, this is the only missing feature that prevents me from using Lövr exclusively for immersive audio game development.