Clean the global state

[lewisjared]

Description

Currently a lot of global state is used (inputs, outputs etc). This makes it very hard to test the application and generally requires running scripts via subprocess which is hard to debug.

This removes the global state in preference for a PriorConfig object to carry around the options. This config object is still created from environment variables.

This also enables the GeoJSON test which was previously disabled because of dependency issues.

Checklist

Please confirm that this pull request has done the following:

• Tests added
• Documentation added (where applicable)

Notes

This also moves the input and output directories into the data/ directory

[lewisjared]

@crdanielbusch Ping

[crdanielbusch]

Nice, looks much cleaner now.

I've tested make run and make download on my machine, it all works fine.