initial prerelease

vscode extension: https://marketplace.visualstudio.com/items?itemName=detachhead.basedpyright

by default it will look for the basedpyright pypi package in your project, meaning you can pin the pyright version vscode uses to the version used in your CI (the package isn't on pypi yet tho so for now just install it from this git repo)

make sure you disable pylance when this extension is active.