NAME:
  reformlc
 PURPOSE:   (one line only)
  Reformat an old-style MallinCAM RECON lightcurve to the new occ format
 DESCRIPTION:
 CATEGORY:
  File I/O
 CALLING SEQUENCE:
  reformlc,fnin,fnout
 INPUTS:
  fnin - Name of the file to read.  This is in the format of the video
           photometry processing tools.  The biggest difference is that
           the time is encoded as seconds from 0h UT on the date of the event.
  fnout - Name of the output file.  These are compatible with the new
             occ*.pro tools and use JD for the time.
 OPTIONAL INPUT PARAMETERS:
 KEYWORD INPUT PARAMETERS:
  JD0 - Julian date of 0h UT on the date of the observations.  By default
          this is taken from the first 8 characters of the file name which
          is normally a compact form of the date.  If the file has a
          non-standard name you need to provide this value.  It can be
          provided as a double precision JD or a date string 'YYYY-MM-DD'
 OUTPUTS:
 KEYWORD OUTPUT PARAMETERS:
 CONFIGURATION:
 COMMON BLOCKS:
 SIDE EFFECTS:
 RESTRICTIONS:
 PROCEDURE:
 MODIFICATION HISTORY:
 Written by Marc W. Buie, Southwest Research Institute, 2020/03/26