Revisit binding of tdfio_specres_* and tdfio_tsig_* functions.
We did not manage to work out how to create the SPECRES and SIGMAPRF extensions, despite providing what seemed like the correct args. The necessary parameters are:
- SPECRES = True for reduce_arc.
- SIGPROF = True for make_tlm. Might we also need to set TLMGAUSSFIT = True and PRFGAUSSFIT = True?
For now we have not included the tdfio_specres_* and tdfio_tsig_* functions in Tdfio as we cannot test them.