PICARD: push files onto Frm intermediates for quieter deleting

When calling _DELETE_TEMP_FILES_ with VERBOSE=0 and ALSOGRP=1, messages
about deleting Frame-based intermediates are suppressed, while those
pertaining to Group-based intermediates are not.

There can be a lot of aligned files from this primitive which should
be deleted, but it's distracting and unecessary to have the recipe end
with 100+ messages about deleting intermediate files which the user
didn't know existed and doesn't care about.
SCUBA2: this is not the place to store the Frame uhdr

Storing the Frame uhdr in the Group is necessary for PICARD which
doesn't have translated headers in the Group uhdr - so it should be
done in a PICARD primitive, not SCUBA-2.
PICARD: store the Frame uhdr in the Group to get translated headers
SCUBA2: write the FAKEMAP keywords into the FITS header

They might be useful to downstream primitives, and in the case of the
jack-knife recipe it is very helpful in determining an appropriate
input PSF for the PICARD version of the recipe.