v0.3.0

[MikeSWang]

Bug fixes

Fix reused bin statistics when duplicate recording is designed to be avoided
in threept.cpp.

Features

• Add the functionality to record binning details for wavevector modes
  and separation pairs from a mesh grid with the option to save the results
  to a file in C++.

• Add more forms of three-point statistics including the off-diagonal and
  full form (the original 'full' form is renamed to 'row').

Improvements

• Implement further parallelisation and refactoring resulting in
  significant speed-up.

• Enhance parameter validation consistency.

Maintenance

• Update syntax and fix typos.
• Add and update test data after API changes.

Documentation

• Add and update details to/in various documentation components.
• Update and rerun tutorial notebooks after API changes.

---

This discussion was created from the release v0.3.0.