WIP: Prefix free function calls to their appropriate modules

Created by: stratact

This is work-in-progress. Do not merge.

To help make code easier to navigate, I think it would be nice to have all of the free functional calls prefixed to their parent modules. This way you now exactly which precise functions are called and you can have multiple ones of the same name in the same module. In my opinion, this is a lot better than doing glob imports and it is more self-documenting in the source.

I would like people's opinions on this, before I continue on doing the same for rest of the free function calls. At the moment, I have only completed doing this with the common::debug module.