Vyper 🐍

I just merged the monster PR that makes all 🐍 snekmate contracts module-friendly:
https://x.com/pcaversaccio/status/1798316207432401324

>3 months of work, countless hours of design discussions, bikeshedding on literally any technical dimension, refactoring over and over again, adding new features but here we are!

𝐖𝐨𝐫𝐤𝐢𝐧𝐠 𝐨𝐧 𝐰𝐡𝐚𝐭'𝐬 𝐧𝐞𝐱𝐭.

https://github.com/pcaversaccio

The Vyper compiler will search in the Python syspath for the snekmate modules, thus you can simply do the following in your contract:

```bash
from snekmate.tokens import erc20
```

To get started with Vyper and snekmate modules, you can simply invoke the following (use a virtualenv please):

```bash
pip install snekmate==0.1.0rc1 vyper==0.4.0rc6
```

Impressive, great to have an OpenZeppelin for Vyper