`verdi calcjob cleanworkdir`: Add option for work chain

[mbercx]

Is your feature request related to a problem? Please describe

A user on the mailing list wanted to clean the remote directories of all calculation jobs executed within a work chain with verdi calcjob cleanworkdir. Currently, this is not possible and I don't think there is a very straightforward way of doing this with the Python API.

Describe the solution you'd like

One solution would be to simply add an option, e.g. --workchains / -w, where the user can provide a list of work chain pks/uuids for which they want the remote directories cleaned:

verdi calcjob cleanworkdir -w <WORKCHAIN_ID>