Implement Reproducible Imagematch Wrapper

[emirkmo]

This issue is to keep track of implementing a reproducible wrapper for imagematch. I will use the config file to keep track of this and all of this should fit into the run_imagematch.py script.

Currently, my plan is to make the run_imagematch function more agnostic and general. Doing checks on the config should be abstracted away to another function, and a final config file should be produced that gets fed into run_imagematch. I have all this in a Jupyter notebook, so I'll move this over to flows now.

The end goal is that we should be able to simply pass around these config files and the template and science images, and get the same subtracted image as a user submitted one.

I'll also be using the forked version of imagematch for this, although Chris might merge this back into official imagematch down the line.

For now, we agreed on making the config file have the name of the science image, and some sort of increment to keep track of different versions.