Wakeflow

This release includes the partial port of the code [`spiralmoments`](https://www.github.com/TomHilder/spiralmoments) as a user-friendly sub-module. Currently this is capable of creating, projecting and rotating spiral shapes using disk surface parameterisations and orientations (inclination, PA, azimuth). The peak-velocity map predictions using the analytics part has **not** been ported yet.

Also included in this update is various small fixes (`mcfost` interface now works with version `4.0` for example), as well as the new developer option to smooth the solution between the linear and non-linear regimes in radial velocity.

This release is intended mostly as a stepping-stone for the next major release which will include the overhaul by DanieleFasano outlined in 21.

wakeflow` version to coincide with finalising JOSS review process.

This update adds great speed improvements due to the vectorisation of the coordinate transformation part of the code, implemented by Jacob Vandenberg. Models generate on the order of 10 times faster for most parameter choices.

This release also coincides with submission to the Journal of Open Source Software.

Release with documentation and tutorials.

The configuration has also changed to use function arguments instead of a dictionary (although it is still easy to use a dictionary)

Finally, the approximate mapping from \chi to \psi (see Bollati et al. 2021) has been removed in favour of an **exact** mapping.

First major release of wakeflow after code refactor into a standard Python package that is pip installable.