[HOT FIX] Fix the crash in the end of neuland Map2CalPar process

[YanzhaoW]

Program crashes when using R3BNeulandMapped2CalPar to create cal-level parameter.

This is due to the deletion of non-owning memory (namely TH1F and FairParSet).

When I suggested we should use

auto* hist = R3B::root_owned<TH1F>("hist", "hist", 0, 1, 10);

to specify the ownership of ROOT histograms. I remember someone said this is totally not necessary because people would never delete histograms. Well, it turns out people do.

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Checklist:

• [x] Rebased against dev branch
• [x] My name is in the resp. CONTRIBUTORS/AUTHORS file
• [x] Followed the pull request guidlines and the Git workflow
• [x] Followed the seven rules of great commit messages

[YanzhaoW]

@jose-luis-rs Ready to be merged.