Add jfjoch_azint, a multi-threaded tool that runs CPU azimuthal
integration (AzIntEngineCPU) on a Jungfraujoch HDF5 file and writes the
result to <prefix>_process.h5, mirroring jfjoch_process output.
Azimuthal integration settings (min/max Q, Q spacing, azimuthal bins,
polarization and solid-angle corrections), geometry (beam center,
detector distance, wavelength, PONI rot1/rot2) and the polarization
factor default to the values stored in the input file and can be
overridden from the command line.
Set az_int_phi_bin_count on the StartMessage so the writer sizes the
azimuthal dimension correctly for multi-azimuthal-bin output.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>