Switch Typechecker from mypy to pyright

[vighneshiyer]

Pyright is a Python typechecker and LSP that is faster and has tighter IDE integration vs mypy. It also doesn't require weird hacks for ruamel and networkx to typecheck. It also is a bit more strict than mypy. This was just a fun experiment to see what things pyright might catch that mypy doesn't. Feel free to investigate and merge if you'd like.

Related PRs / Issues

Type of change:

• Bug fix
• New feature
• Other enhancement

Impact:

• Change to core Hammer
• Change to a Hammer plugin
• Other

Contributor Checklist:

• Did you set master as the base branch?
• Did you state the type-of-change/impact?
• Did you delete any extraneous prints/debugging code?
• (If applicable) Did you add documentation for the feature?
• (If applicable) Did you update the poetry.lock file if you updated the requirements in pyproject.toml?
• (If applicable) Did you add a unit test demonstrating the PR?
• (If applicable) Did you run this through the e2e integration tests?
• (If applicable) Did you update the submodules in e2e/ if this feature depends on updated plugins?

[harrisonliew]

Thanks!!! This looks like a pretty straightforward migration. What's still left to do (i.e. why is it in draft)?