Show reprocess ID after triggering reprocessing

[vineetbansal]

Partially addresses #1676 in sds-data-manager (PR #1677 addresses the other half).

If available from upstream, returns reprocess_id as the return value of the reprocess function, which is then displayed on the terminal.

Same behavior as before if no such key is available in the response json.

[leowerneck]

LGTM.

One question: do we want to support the custom tag syntax -tag TAG discussed in sds-data-manager#1676?

[vineetbansal]

I'd say the custom tag stuff can be left for later, once we get used to searching by tags and making sure it is practical - the way to search for tags is to say something like "imap/<key>=<value>" in the filters in the dagster UI, which will get tricky unless we're sticking to some discipline as to both the keys and values.

[jaredclaypoole]

Looks good!