…fft` with `scikit-build-core`

This in preparation for Python 3.11 and later, and to remove much of the logic in setup.py + make it easier to install

`CMakeList.txt` is based on a sensible boilerplate cCourtesy of https://github.com/friendlyanon/cmake-init
Using the template for a shared library (https://github.com/friendlyanon/cmake-init-shared-static)

I'm having difficulties making `_gaussianfft.so` find the appropriate `libiomp.dylib` :(

Only use `dist` wheel during testing, because of conflicting version requirement in the two wheels after it was fixed by auditwheel

This avoids an issue where the wheels for linux where created as "dirty" (`.dev0` on tags)

Versions of Boost prior to 1.76.0 can be troublesome to compile;
* Skip C++11 check when compiling older versions of Boost
* Use Boost 1.76.0 or newer on macOS, and in the source distribution
* Python Boost 1.74.0 seem to have problems with Python 3.10 and newer

Build pre-compiled wheels for Apple Silicon

Add note on FFTW GPL