Method uploadTrackV2AndWriteToChain

* Takes in a readable stream if isServer is true, or a file reference if isServer is * false. * Uploads file, retrieves multihash, adds multihash to input metadata object, * uploads metadata, and finally returns metadata multihash * Wraps the stateless function in AudiusLib. * * @p

(
    userId: number,
    trackFile: File,
    coverArtFile: File,
    metadata: UploadTrackMetadata,
    onProgress: () => void,
    trackId?: number
  )