Rethink error handling?

[Ebanflo42]

Currently, all of our tests are littered with .expect, which is really ugly. I would vote to panic from within all user-facing functions. I'm not really sure what the API would gain from doing anything else.

[Ebanflo42]

@atlv24 would it make sense for us to have a separate error type for each module? or should we create a src/error.rs to encapsulate every error?

[BradenEverson]

@Ebanflo42 We could do errors for every module and for anything outward facing use a super-error that can be from any of the smaller errors?