The deprecated package will probably not be available by the time I'm ready to merge
DM-10156. This is unfortunate, but I don't want to delay merging that ticket, given the number of packages involved. I'm going to implement the various deprecated interfaces there, but they will only provide deprecation warnings at the C++ level, not python.
This ticket is to add deprecation warnings to the python layer for all getCalib, setCalib, hasCalib methods in afw. Kian-Tat Lim and I may have to iterate on exactly how best to do that deprecation decoration.