Support for HTC Condor Systems

[rosecers]

Feature description

Hi! Wisconsin's Center for High-Throughput Computing (https://chtc.cs.wisc.edu/) operates with a Condor submission system, which is currently not supported by signac. I've had a brief chat with those at CHTC (@ChristinaLK) about the necessary steps to develop a template for Condor submission, but my understanding is that the nature of distributed systems may make this more than writing a template.

I'll continue to put thought into a possible solution, but happy for any input others might have.