Medford

This is the first version of the medford parser 2.0.0 release. It is available on Pypi [here](https://pypi.org/project/medford/2.0.0/).

There is still a large number of issues, but for the time being, this is the official release of 2.0.0 such that the repository can be restructured and other development can continue. Please feel free to make issues with any failed functionality, and please don't mind the debug messages.

This parser currently has the minimal functionality of being able to take in a MEDFORD file and parse it for any syntactical errors, and a small number of content errors. For example, with the update to the MEDFORD language itself, we are now requiring a MEDFORD block describing metadata about the MEDFORD file itself.

What's Changed
* Releasing MEDFORD 2.0 by infispiel in https://github.com/TuftsBCB/medford/pull/18

**Full Changelog**: https://github.com/TuftsBCB/medford/compare/v1.0.2...v2.0.0

This is the release of MEDFORD 1.0.2., available at pypi [here](https://pypi.org/project/medford/1.0.2.post1/), or using `pip install medford`. This version updates MEDFORD to depend on Python v3.8, and Pydantic v2.

This is the official release of medford v1.0.0.

It can be downloaded from pypi using `pip install medford`, with further details at the following URL: [Pypi](https://pypi.org/project/medford/)