Added IMGSTAT, GLBSTAT, COMMCNT and COMMPROG detailed decom. This also includes moving _aca_header_* functions into a class (thinking of an accumulator for header 3) img stat id etc.
Added IMGSTAT, GLBSTAT, COMMCNT and COMMPROG detailed decom.
This also includes moving _aca_header_* functions into a class (thinking of an accumulator for header 3)
img stat id etc.

sot/chandra_aca,sot/chandra_aca