Dgh

Fix

- Removed redundant `__init__.py`
- Renamed source directory

Fix

- Allowed for importing (oops)
- Corrected dimensions in `fg_to_R`

Feature

- Different levels of verbosity

Documentation

- Expanded README.md

Fix

- Prevented overflow from c**2

Feature

- Switched to global iteration budget with no limitations per restart

Documentation

- Added this changelog

- First release of `dgh`