constant reference edits for TFileDirectory objects

[macndev]

This work is intermediate work being completed between iterations of art, v3.9 and v3.10, where TFileDirectory objects now need to be passed by constant reference. The modifications here were validated with 1k ceSimReco events against a reference branch, returning perfect matches:

macndev@mu2ebuild01.fnal.gov:/mu2e/app/users/macndev/OfflineArt310_ref:valCompare -s val_ref.root ../OfflineArt310/val_working.root
TValCompare Status Summary:
370 Compared
6 marked to skip
0 had unknown status
0 could not be compared
24 had at least one histogram empty
0 failed loose comparison
0 passed loose comparison, failed tight
0 passed tight comparison, not perfect match
364 had perfect match
364 passed loose or better
364 passed tight or better

[FNALbuild]

Hi @macndev,
You have proposed changes to files in these packages:

• Validation

which require these tests: build.

@Mu2e/fnalbuild-users, @Mu2e/write have access to CI actions on main.

⌛ The following tests have been triggered for cc6e1ca: build (Build queue is empty)

About FNALbuild. Code review on Mu2e/Offline.

[FNALbuild]

☀️ The tests passed at cc6e1ca.

Test	Result	Details
merge	✅	Merged cc6e1ca at 2cdee13
build (prof)	✅	Log file. Build time: 27 min 39 sec
ceSimReco	✅	Log file.
g4test_03MT	✅	Log file.
transportOnly	✅	Log file.
POT	✅	Log file.
g4study	✅	Log file.
cosmicSimReco	✅	Log file.
cosmicOffSpill	✅	Log file.
ceSteps	✅	Log file.
ceDigi	✅	Log file.
muDauSteps	✅	Log file.
ceMix	✅	Log file.
rootOverlaps	✅	Log file.
g4surfaceCheck	✅	Log file.
FIXME, TODO	〰️	TODO (0) FIXME (1) in 73 files
clang-tidy	〰️	0 errors 0 warnings

N.B. These results were obtained from a build of this Pull Request at cc6e1ca after being merged into the base branch at 2cdee13.

For more information, please check the job page here.
Build artifacts are deleted after 5 days. If this is not desired, select Keep this build forever on the job page.

[FNALbuild]

📝 The HEAD of main has changed to d582a8d. Tests are now out of date.

[kutschke]

@FNALbuild run build test

[FNALbuild]

⌛ The following tests have been triggered for cc6e1ca: build (Build queue is empty)

[FNALbuild]

☀️ The tests passed at cc6e1ca.

Test	Result	Details
merge	✅	Merged cc6e1ca at d582a8d
build (prof)	✅	Log file. Build time: 13 min 49 sec
ceSimReco	✅	Log file.
g4test_03MT	✅	Log file.
transportOnly	✅	Log file.
POT	✅	Log file.
g4study	✅	Log file.
cosmicSimReco	✅	Log file.
cosmicOffSpill	✅	Log file.
ceSteps	✅	Log file.
ceDigi	✅	Log file.
muDauSteps	✅	Log file.
ceMix	✅	Log file.
rootOverlaps	✅	Log file.
g4surfaceCheck	✅	Log file.
FIXME, TODO	〰️	TODO (0) FIXME (1) in 73 files
clang-tidy	〰️	0 errors 0 warnings

N.B. These results were obtained from a build of this Pull Request at cc6e1ca after being merged into the base branch at d582a8d.

For more information, please check the job page here.
Build artifacts are deleted after 5 days. If this is not desired, select Keep this build forever on the job page.