Organize hyper-model specs

[adamcreekroad]

Right now all the specs are grouped into batch folders as a means to optimize parallel runtime efficiency. Batching them is great, but doing so by folder organization makes it tough to know where to look when doing any sort of work in there.

It'd be great to re-organize everything into a file structure that matches the code structure, but use something like RSpec's tag matching to determine the batches.