Unity Editor Play Audio in Edit Mode

References
https://github.com/MattRix/UnityDecompiled/blob/cc432a3de42b53920d5d5dae85968ff993f4ec0e/UnityEditor/UnityEditor/AudioUtil.cs

https://forum.unity.com/threads/audio-track-preview-in-timeline.480856/

https://github.com/keijiro/AudioPreviewTrack