LanguageMachines/libfolia: v2.0

This is a major release.

• Supports the new FoLiA 2.0 features:

  • provenance support
  • more stricter checking on annotation declarations
  • added the new TextMarkupReference class
  • supports Hidden Words.
  • All structure elements can have the 'space' attribute
  • support for groupannotations
  • many more.

• API and ABI breaches:

  • library version bumped to version 10
  • many functions are renamed
  • the text() functions have an ENUM parameter now to select for STRICT, RETAIN or HIDDEN

• bug fixes

  • support for xlink: improved
  • there as a rare mixup between <text> nodes and <text-annotation> nodes in the folia::Engine
  • all <wref> nodes get a 't' attribute now on serializing.
  • reading Extrenal FoLiA could get in an endless loop

• code refactoring and cleanup