Breaking
* refactor: change how cfg variable in config files are initialised to make it easier to parse and less restrictive
BREAKING CHANGE: `cfg = CN(cfg)` is no longer allowed, use `cfg = schema.init_cfg()` or `cfg = cfg.clone()` ([`a171ed7`](https://github.com/Rizhiy/pycs/commit/a171ed77052a630f61506de212932ebe548bd5e4))
* refactor: change to use &39;schema&39; as variable name for cfg schema
BREAKING CHANGE: Now only initialised config can be imported as cfg ([`488109e`](https://github.com/Rizhiy/pycs/commit/488109e6f197c024ba2c5106c257765139340ffd))
Feature
* feat(utils.py): Add warning when extending config file without clone and add tests ([`6ea200d`](https://github.com/Rizhiy/pycs/commit/6ea200d88cb5b54635021bf0c0d22463f53068cc))
* feat(node.py): Add new_allowed as a property ([`f5d7a0c`](https://github.com/Rizhiy/pycs/commit/f5d7a0c75bbeea21aba14640080ee1f99d555342))
Fix
* fix(pyproject.toml): Add missing isort dependency ([`d7ed00f`](https://github.com/Rizhiy/pycs/commit/d7ed00f7fa2b24f48a4d7c8c120daf29603bac52))