`irods_sync` script fixes and enhancements (plus one other bug fix)

[alanking]

Addresses #91 Addresses #92 Addresses #93 Addresses #210 Addresses #293

I'm contemplating adding tests for these subcommands, but it seems a little tricky (hence, draft PR) and there are no existing tests for any of the subcommands other than start. Existing tests are passing.

Also, the two commits referencing #210 (only) can be squashed into one if we like the solution of maintaining a list of stopped jobs. Otherwise, we can drop the second commit because the first one addresses the issue (albeit, not as well, IMO).

[korydraughn]

Are you looking for feedback on this PR even though it's in draft?

[alanking]

I want to confirm that this is doing what we want before marking as ready for review. Feel free to leave feedback on what you see, but the implementation may change significantly depending on how the requirements settle out.

[korydraughn]

Ok. Will put eyes on this once it's out of draft.

[alanking]

I squashed the two #210 commits together since we're pretty into the stopped jobs list. The stopped jobs list now includes all the information shown in the active jobs list subcommand output. I think this is ready for review...

[korydraughn]

Ok. Will get eyes on it.

[korydraughn]

Anything left for this? Are the tests passing?

[alanking]

I'll run the test suite once more for good measure, but these changes mainly affect the sync script rather than the framework, so these should probably be passing. I'll report back with results soon.

I would also like to update the commit message for "Reset Redis handles for stopped jobs", but that's about it for this one.

[korydraughn]

Sounds good. Will wait for the test results before approving.

[alanking]

Tests are passing.

[alanking]

Squashed, tweaked commit message, and added a thing that Black formatter caught.

[alanking]

'd, mergin