Monitor NONMEM model runs from rbabylon

[seth127]

Summary

The user should be able check on the status of model runs from rbabylon and reliably get one of the following responses: not submitted, in queue, running, finished, failed.

Implementation requirements

• The function that does this (we'll call it check_nonmem_progress) should accept either a model object or a valid path to the model (YAML, ctl, or output dir).
• model_summary() should call this under the hood and return a meaningful response for models that are not successfully finished.
• run_log() should call this under the hood and add a column for model_status reflecting the status of each model. Consider if this can/should be done in parallel.

Implementation details

This will likely require looking at output folders, as well as something like qstat (or maybe top for the local models?). It is not clear how this should be implemented, but it will likely require some consultation with both the scientists and @shairozan to consider all the edge cases.