Corpus Module Cleanup

[Olamyy]

Took sometime to rework the corpus module.
Major changes:

1. Introduced a corpus and corpus path getter.
2. A simple yaml file for keeping tracks of available datasets.

[ruohoruotsi]

This one is also broken, let me look at both of them and see if there isn't some meta-pattern we can adopt to facilitate a smoother PR process. I know this is painful for the Travis to be so disagreeable.

Also we might consider adopting GitHub Actions in the future, as a better CI/CD system

[Olamyy]

Yeah. They both break at the same point.

I added some txt and yaml files that some functions depend on. However, it doesn't seem like travis copies those when it installs the package. It's a packaging issue. I've added the paths to Manifest.in like you did for the model but that still doesn't work. I've also tried adding the paths to package_dir and data_files in setup but still, the same thing.

[ruohoruotsi]

no problem, working on it now ... will try some things locally, and save tests via pushes to Travis for when I'm fresher in the AM.