Better reconstruction of missing mmCIF data. More resilient loading of dictionaries. And a new progress bar.

Changed the way PCRE2 is included, using pkg-config when available, reverting to building from source otherwise.

Performance with large and potentially incomplete files should be improved in this version.

Renamed some fields of cif::mm::polymer to match corresponding data fields in the dictionary.

Changed code for loading CCD compound information

Fix crashing bug when reading PDB formatted files lacking some information.

Bug fix release

This release contains some small bug fixes. Especially when compiling for macOS on arm processors.

This release fixes a problem where the exports.hpp was not installed.

Read compound info from embedded restraints files properly.

This release attempts to bring more consistent naming.

Next to that, error handing has changed somewhat and there's now code to repair mmCIF files, especially when those files lack certain required fields or categories required by libcifpp itself.