Refactoring of the keywords use.
Description
This Merge Request seeks to completely rethink the way FITS headers are read and written. It tries to make the functions that do it generic and simpler. Also, it keeps the keywords that are not known.
Related Issues
Closes #668 (closed)
Merge Request Checklists
-
Code follows project coding guidelines and its checklist -
I have submitted a MR in theif requireddocumentation repository -
I have updated Changelog and NEWS, listing the related issues. -
If my MR introduces new dependencies, I have run all the CIs, even the optional (manual) jobs.
Edited by Cyril Richard