Pnwkit-py

- Fix import for `pnwkit.legacy`

This release completely refactors the library's internals with better support for advanced features like variables, aliases, and multiple queries. It also adds improved support for pagination and support for subscriptions. The new changes are _not_ backwards compatible, however, all the old code has been moved to the legacy folder and re-exported to prevent breaking changes and ease the transition to using subscriptions. This version will be republished as v3.0.0 without the legacy code at some point in the future.

In my infinite snippet wisdom, I managed to mess up the query names for cities, treaties, bounties, and all the baseball queries. This release fixes that and renames the baseball queries from bb... to baseball_... to be correct and in-line with the API.

I'm stupid and somehow forgot to change the API URL back to the production after using my local copy of pnwkit to test the API. This is now fixed.

- Adds support for pagination and batched pagination through sync and async iterators
- Adds support for GraphQL variables through keyword arguments (BREAKING CHANGE: Replaces previous functionality of kwargs overriding params)
- Adds support for all new types and all new queries including me, bbgames, bbplayers, bbteams, bounties, cities, game_info, and warattacks
- Adds support for verified bot keys and mutations

Fixed a few small type issues and achieved 100% type completeness!