First commit

Check in all of nuplan code
Streamline

Streamlines stray_light_render.pro to remove extraneous where searches.
Updated leakage_map.pro

Added insidepolygon_vect.pro (vectorized polygon checker) and
implemented a full vectorized projection of the stray light. Reduces
runtime of
Updated code

Did lots of improvements. Call is now nustar_stray_light, ra, dec,
/do_scan to scan over PA angles. Output dumped to scan.pdf and
pa_scan.dat
Cleaning house...
More housecleaning and adjusting the catalog inputs.
Added the catalog to the distro...
Yet more housecleaning...
Cleanup...
Merge remote-tracking branch 'upstream/master'