Pyterato

All checks migrated native modules in the D language and all Python checks and data imports removed meaning:

- Huge performance increase (300%+ on the "Don Quijote" test).
- Reduced codebase.

The native part was also reorganized compared with the previous version to something more idiomatic for Dlang.

- New checker for around 4000 common cliche expressions, including matching for several verbal suffixes and genders on each.
- Activated the "calco" checker.
- Performance improvements (now it's slightly faster than v0.2.0 even
with the cliche checker).

- Add missing static typing in the `cli` module.
- New check for foreign expressions translated too literally ("calcos").
- Autodiscover of checks based on the parent type.
- Simplify findings append logic.
- Added '--enable' and '--disable' options to enable or disable specific tests.

- Make LibreOffice indication of the warnings' page optional (increase performance).
- Show the textual context of warnings.
- Reworked checking classes, added the check as a static method of each class.
- Discovery of check classes.
- Output report improvements.
- Separate LibreOffice iterator into a separate module, remove all dependencies for LibreOffice in the remaining code.
- Added txt file iterator.
- Added command line parameters to select the input source and other options.
- Updated tests.
- Updated README.
- Some additional fine-tuning of existing filters reducing false positives.