Feature addition
Feature addition

Added flag to make_mosaic called "write_sun" to optionally write the Sun's location in RA/Dec in the output file. This was confusing when I came back to this, so this is now option (default is False).
NuSTAR/nustar_pysolar,bwgref/nustar_pysolar,NuSTAR/nustar_pysolar,bwgref/nustar_pysolar