Configpile

Fix

- **processor**: Process docstrings according to PEP 257
- Ignored a type warning

Feat

- Added support for root path

Fix

- Removed nonexistent reexport "configpile.fun"

Fix

- **config**: prefix ClassVar by typing.ClassVar and so on

Fix

- **processor**: Respects case in INI files

Fix

- **parsers**: fix Parser.from_parsy_parser call convention as it breaks when using collections
- add words to cSpell dictionary

Refactor

- fix more PyLint warnings

Refactor

- moved classes to avoid circular imports; corrected PyLint warnings

BREAKING CHANGE

- Internal classes have been moved around, so imports may need to be fixed. Imports from configpile.* are unchanged.