Adjusted so that '&' is now recognized as a discovery setting and the use of '&' is propery tracked.  Also allow name to start in 2nd column and handle lines that start with '#' as being comments.
Check the .cands. and .reals. files to see how good the allignment to the Object.planted file is but don't do photometry.
Mostly PEP8 cleanup with some improved logic regarding recording of false_postives in the .match file.
Trap errors on converting /x/y/ comment to a floating point.   Also expanded the radius where a candidate is considered to be a match to planted (10pixels)
allow MPC lines to have the comment preceeding the astrometric line.  This ability should be more generic for creating an observation but I'm not sure how.
Set the param type on subdir to be str instead of String