Migrate command `regenerate-interleaved-storage-index-file`

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FEATURE REQUEST

1. Please describe the feature you are requesting.

• Using bkctl run regenerate-interleaved-storage-index-file

2. Indicate the importance of this issue to you (blocker, must-have, should-have, nice-to-have).
   Are you currently using any workarounds to address this issue?

• nice-to-have

3. Provide any additional detail on your proposed use case for this feature.

Regenerate an interleaved storage index file, from available entrylogger files.

Usage:  bkctl bookie regenerate-interleaved-storage-index-file [flags]

Flags:

    -b, --b64password
        The password in base64 encoding, for cases where the password is not
        UTF-8.

    -d, --dryrun
        Process the entryLogger, but don't write anthing.

    -l, --ledgerids
        Ledger(s) whose index needs to be regenerated. Multiple can be
        specified, comma separated.

    -p, --password
        The bookie stores the password in the index file, so we need it to
        regenerate.This must match the value in the ledger metadata.


    -h, --help
        Display help information