added master ignore chans files, frb catalog, and edited check_frb.py and...
added master ignore chans files, frb catalog, and edited check_frb.py and get_frb_from_pointing.py to work with the .cat file and the .ignorechans files
added master ignore chans files, frb catalog, and edited check_frb.py and get_frb_from_pointing.py to work with the .cat file and the .ignorechans files