Better memory handling in PseudoJetContainer

Tadej Novakrequested to merge
tadej/athena:asg/phys-fix into master

Better memory handling in PseudoJetContainer. Replaces !39301 (merged).

It seems that some ordering was not completely OK, so I switched everything to smart pointers. Probably overdid it a bit, but DAOD_PHYS works now without crashing.

/cc @ssnyder @wbalunas @lheinric

Edited by Tadej Novak

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