Reorganize Directories to allow more freedom in grouping

[wesh92]

The current directory structure is pretty limited when it comes to additional features being added. Move to pulling things to the top of the Repo since this will basically exist as a monorepo for all time.

• Move asset_extraction and data out of src and into the root of the repo
• Refactor references to modules
• Move oguri_utils to a utils directory and generalize those functions.