Summary

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- Each package has its tests separated in a separated package.

- Cleaned baseline, made it more modular.

- Created more groups to let people load the part of the project they want.

- Some cleaning in `PetitParser` package.

- Integrated PetitPreprocessor and PetitParserExtensions in the project as separated groups

Changelog

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#31 Extract PPTextHighlighter into a separated package.

#21 Add contribution guidelines

#13 Update README with new groups

#9 Fix CI configuration

#19 A TODO comment in PPMemoizedParser>>#parseOn: might need to be fixed cleaning

#11 Inconsistent method classification

#15 Split tests in their own packages cleaning

#22 PetitPreprocessor is missing some extensions

#3 Use `>>>` notation for examples inside method

#8 PPStream>>#column: has commented code that should be removed

#7 PPCharSetPredicate and PPContextMemento need to be commented

#1 Replace 'Oops' error message with a meaningful message

#4 PPContext>>#on:stream: should be removed

#2 Integrate PetitParserExtensions package from Smalltalkhub

#5 Integrate PetitPreprocessor package from Smalltalkhub