Added unit packing and the first version of automatic (un)packing on conversion.
The library has been completely refactored and the documentation rewritten.
Refer to the [documentation](https://github.com/diantonioandrea/misura/blob/main/docs/docs.md).
More on [PyPI](https://pypi.org/project/misura/).
**misura** can be installed by:
python3 -m pip install --upgrade misura