* Refactor corpus class
* Datatools: added more functions and utilities
* Config: Create basic config
* Datatools: Added basic config control and more improves
* Datatools: improves corpus data view
* Filetools: add utility load from dir
* Datatools: fix bugs and move intern function to other scope
* Datatools: deprecated split_and_save and add new save method
* Datatools: fix configuration bugs
* Datatools: added compatibility with legacy test data
* Datatools: fix legacy verify bug
* Filetools: read and write json data (baseline)
* Filetools: create .json support
* Filetools: added exception to dict data without .json ext
* Filetools: added getitem for .json data
* Filetools: remove from .json data
* Filetools: fix json utility
* Filetools: fix tests