Universalasync

Drop python 3.7 support

Don't install a separate tests package, but include tests in source tarball

Improve reliability of utils `_get_event_loop()`

Rename BitcartCC to Bitcart

Fix errors on cleanup in Python 3.9+ when calling async methods

Fix some more use cases of the module

The `wrap` function now automatically creates sync variants of async context managers

Fixed an issue where `get_event_loop` would error if it was called only during finalizers

Support python 3.11