Roxygensed the documentation

[karthik]

Okay. I'll drink the Kool-aid.

Awesome! 👍

I do see the utility in setting up tests, and have added some preliminary function tests. I also made some small function tweaks that format location values correctly and throw errors when you try to hand it a non-existent location. I'll add a plot function and a quick data manipulation function (form interaction matrix from edgelist output) sometime soon-ish.

Cool! 💯

I think what I'll need your help with the most is the conversion of my current documentation setup to the roxygen setup. Also, please continue to point out things I should be doing (writing tests, etc.).

Done. See the inline docs in this PR. I'll provide feedback on tests on the next round.