Added changes to clean up the instance catalogs 	new file:   cleanupspectra.py
Added changes to clean up the instance catalogs
	new file:   cleanupspectra.py

DarkEnergyScienceCollaboration/Twinkles,LSSTDESC/Twinkles,LSSTDESC/Twinkles,rbiswas4/Twinkles,rbiswas4/Twinkles,DarkEnergyScienceCollaboration/Twinkles