one: Add one_snprintf to sun234.tex

The function documentation has been copied from the one_snprintf.c
file.
smurf: Add Nside to JSATILE header comment

This commit updates the comment attached to the JSATILE
FITS header to include the number of tiles per side of
the base resolution HEALPix facets.  (This allows the
tile number to be interpreted uniquely.)
smurf: Update build dependencies

Added ONE to the build dependencies for SMURF.  It is already
in the Makefile.dependencies file because SMURF has indirect
dependencies on ONE.