Move helpers for ProtoParticles from Rec

Tara Nanut Petricrequested to merge
tnanut_update_protoparticle into master

Move helpers from TrackLike.h to ProtoParticle.h as new NeutralLike.h also needs them.

Needs to be merged together with Rec!2736 (merged).

Edited by Rosen Matev

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