[FEAT] Bumps to web3 v6, adds linters, adds tests (pending upstream merge)

[8ball030]

This pr is to (Hopefully) bump balpy to web3.py > v5

There are a number of dependants which would need to be merged and released;

https://github.com/gerrrg/multicaller/pull/1

I am very sorry about the size of this pr i got a little carried away.

However, it does accomplish few things and fixes a few bugs caught by the now introduced linters.

Features.

-> formatters to fix the incostent tabs and spaces issues, sort imports and format with black.

-> linters: -> autopep8

-> test suite: demonstrates functionality of the subgraph queries to allow for tests.

-> dev group for dependencies.

Probably a bit too aggressive i again apologies.