added getopts parameter handling
added getopts parameter handling

USGS-Astrogeology/ISIS3_scripts,thareUSGS/ISIS3_scripts,USGS-Astrogeology/ISIS3_scripts,USGS-Astrogeology/ISIS3_scripts,thareUSGS/ISIS3_scripts,thareUSGS/ISIS3_scripts,USGS-Astrogeology/ISIS3_scripts,thareUSGS/ISIS3_scripts