HepMC3 nightly branch fixes 15120202 part 1

In this MR:

• update types, e.g. GenPartice* -> GenParticlePtr and similar
• use c++11 loops to loop over particles
• use std:: for math functions

Also note one quite interesting non-portable ( in a wide sense) place where an integer constant is obtained from the object address. Ported as is.

This merge request affects 3 packages:

• Tracking/TrkValidation/TrkValTools
• Trigger/TrigAnalysis/TrigInDetAnalysisUtils
• graphics/VP1/VP1Systems/VP1TrackSystems

Affected files list will not be printed in this case

Adding @sutt ,@amorley ,@nagano ,@mvozak ,@rbianchi as watchers

added EventDisplay Tracking Trigger master review-pending-level-1 labels

CI Result SUCCESS (hash 8b88f70d)

	Athena	AthSimulation	AthGeneration	AnalysisBase
externals
cmake
make
required tests
optional tests

Full details available on this CI monitor view
Athena: number of compilation errors 0, warnings 0
AthSimulation: number of compilation errors 0, warnings 0
AthGeneration: number of compilation errors 0, warnings 0
AnalysisBase: number of compilation errors 0, warnings 0
For experts only: Jenkins output [CI-MERGE-REQUEST-CC7 25216]

added review-approved label and removed review-pending-level-1 label

merged

mentioned in commit 6ba4f2d7

added sweep:ignore label