Feature/indexing tweaks
This merge request contains 3 basic changes
- The nstacks parameter of FFT indexing can be changed by user in the peak auto-indexing dialog. This improved the situation for some Biodiff data, because it appears to be necessary to tweak this parameter occasionally.
- When interating through the list of solutions, we take care not to throw away the possible solutions in which the basis vectors are in a left-handed orientation. Instead, we just flip the vectors so that the configuration becomes right-handed.
- Various minor changes to code formatting to improve readability, as well as a few additional explicit casts to remove compiler warnings.