Added adaptive IR to all VIIRS IR bands, added flag to viirs2awips and
AWIPS backend config.
adding modis enhanced IR changes
Merge branch 'viirs_ir_hist' into develop

Conflicts:
	py/polar2grid/polar2grid/viirs2awips.py
	py/polar2grid_core/polar2grid/core/rescale_configs/rescale.8bit.conf
added adaptive ir flag to viirs2binary and viirs2gtiff
(cherry picked from commit c23b70a)