Improve Sources Logging

[archiewood]

Add time taken for each source to logs

characters_ep_total ✔ Finished, wrote 1824 rows.

->

characters_ep_total ✔ Finished, wrote 1824 rows (00m 00.12s).

Consider adding additional logging behind --debug flag to time individual parts of the source process

[archiewood]

Note, when we add this we will need to explicitly allow the --debug flag in Cloud

We need to know the exact command to whitelist it

@ud3sh FYI