Make Nextflow Clean Options Available for Use in Nextflow.config

New feature

It would be great if the options available to the nextflow clean command (documented here) could be used with cleanup = true in the nextflow.config file.

Usage scenario

I would like to automatically clean up the Nextflow work folders when runs finish successfully while keeping all (typically small) Nextflow logs and metadata files. The nextflow clean command supports this with the -keep-logs option but it seems like there's no way to specify this option in the nextflow.config file so that I don't have to run a separate nextflow command outside of the pipeline.

Suggest implementation

Perhaps the unscoped cleanup configuration option could be turned into a scoped option called clean that includes the options available to the nextflow clean command.

P.S. For people using Fusion, it would also be super useful if these options could work on objects in S3 storage, but I will create a separate request for that.

Start with the existing nextflow clean command and the unscoped cleanup option in nextflow.config, then compare the documented clean options with the available configuration settings. Define how a scoped clean configuration should represent options such as -keep-logs, and verify that successful pipeline runs clean work folders while retaining logs and metadata. Fusion/S3 support is explicitly separate from this request.