Extend the roid catcher to associates alerts with the trajectories estimated from fink-fat 1.0

• The alerts are associated either with an orbit or a polyfit estimator.
• New flags are introduced:
  4 : the alert has been associated with a polyfit estimator
  5: the alert has been associated with an orbit
  The input of the associations are the alerts flagged as 1 or 2

issue related with : FusRoman/fink-fat#128