Added basic HDF5 support#3

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ndw108 wants to merge 3 commits intoAlexSkillen:mainfrom

Commits on Mar 1, 2024

Change to HeFFTe & FFTW3 backend
u43070nw
committed

Commits on Jan 28, 2025

Added HDF5 file writing in parallel.

u43070nw
authored and
u43070nw
committed
Added HDF5 file writing in parallel.

u43070nw
authored and
u43070nw
committed