Use reco not MC PDG hypothesis & isPrimary boolean for Pandora CAFs

[jback08]

Update the PDG hypothesis & isPrimary boolean to use the reconstruction not MC truth info for Pandora.

Also moved the filling of the interaction information from FillInteractions() (which is now removed) to the FillTracks() and FillShowers() functions, depending if the Pandora clusters are tracks or showers, respectively.

The input Pandora ROOT file stores the reco PDG hypothesis & isPrimary variables for each cluster, and it is easier to set these interaction variables when the track & shower Standard Record objects are being created, rather than retrieving them from the Standard Record, as was done by the previous FillInteractions() function, and then trying to work out which Pandora cluster ntuple entry they should correspond to (e.g. using a map).

This update requires LArRecoND v01-01-05 for adding the two new reco ROOT variables isRecoPrimary and recoPDG, as well as LArContent v04_14_00 for adding functionality to say whether a reconstructed cluster is a primary one or not.

[chenel]

hey John: I don't have the bandwidth to give these careful reviews like Noë was doing, but this looks ok to me on a quick read-through. If you need/want a more detailed review, we can see if @noeroy has the cycles for it 😄

[noeroy]

I don't see much issue with it.
Can I assume you tried to run and it gave sensible results?

[jback08]

Yes, I have ran this on an example MiniRun6.2 file and the results look OK.