Compute the statistics for the Average Value of regions that match the requested type/color combination.

% mean_region_stats --help    

Usage: mean_region_stats 20181115T044859.1_056RL_cmp.fits box red Y
arg1 - Name of FITS images (can be full path)
arg2 - type of region to be collectd (box,circle,ellipse) 
arg3 - color region to be collectd 
arg4 - run in debug mode (Y/N)