First pass at inclusive digi merging module

[edcallaghan]

This PR implements a module which, mechanically, flattens multiple StrawDigiCollections and StrawDigiADCWaveformCollections into single collections, and defers to an already-factored-out collision-resolution algorithm. This PR is marked as a draft for now; more detail will be added here before it's necessary to initiate review.

[FNALbuild]

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

• Blinding

which require these tests: build.

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

⌛ The following tests have been triggered for cc329bf: build (Build queue is empty)

About FNALbuild. Code review on Mu2e/Offline.

[FNALbuild]

☀️ The build tests passed at cc329bf.

Test	Result	Details
test with	✅	Command did not list any other PRs to include
merge	✅	Merged cc329bf at 38f72f8
build (prof)	✅	Log file. Build time: 04 min 15 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 (0) in 1 files
clang-tidy	🔶	0 errors 105 warnings
whitespace check	✅	no whitespace errors found

N.B. These results were obtained from a build of this Pull Request at cc329bf after being merged into the base branch at 38f72f8.

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 5694fbe. Tests are now out of date.