On S3 delete of master asset, delete transcoded asset.

[wizage]

Is your feature request related to a problem? Please describe. On delete of S3 Master asset, provide workflow to allow users to configure the auto deletion of transcoded assets.

Describe the solution you'd like On delete S3 notification trigger lambda that loops through and finds all assets inside the certain key i.e. s3://{bucketname}/{assetname}/* and then runs S3 delete objects

Additional context Add any other context or screenshots about the feature request here.