Add ability to change particle type when regrowing

[brownd1978]

This PR provides an option to force regrown tracks to have a different particle type (mass) than what the KalSeed stores. The default is for regrown tracks to have the same particle type as the KalSeed.

[FNALbuild]

Hi @brownd1978,
You have proposed changes to files in these packages:

• Mu2eKinKal
• RecoDataProducts

which require these tests: build.

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

⌛ The following tests have been triggered for 934d561: build (Build queue - API unavailable)

About FNALbuild. Code review on Mu2e/Offline.

[FNALbuild]

‼️ It was not possible to prepare the workspace for this test. This is often caused by merge conflicts - please check and try again.

> git diff --check | grep -i conflict
Mu2eKinKal/src/RegrowLoopHelix_module.cc:280: leftover conflict marker
Mu2eKinKal/src/RegrowLoopHelix_module.cc:283: leftover conflict marker
Mu2eKinKal/src/RegrowLoopHelix_module.cc:287: leftover conflict marker

Test	Result	Details
test with	✅	Command did not list any other PRs to include
merge	❌	934d561 into 20895af merge failed

[brownd1978]

@FNALbuild run build test

[FNALbuild]

⌛ The following tests have been triggered for a384c3d: build (Build queue - API unavailable)

[FNALbuild]

☀️ The build tests passed at a384c3d.

Test	Result	Details
test with	✅	Command did not list any other PRs to include
merge	✅	Merged a384c3d at 20895af
build (prof)	✅	Log file. Build time: 04 min 26 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.
trigger	✅	Log file.
check_cmake	✅	Log file.
FIXME, TODO	➡️	TODO (0) FIXME (2) in 5 files
clang-tidy	➡️	4 errors 38 warnings
whitespace check	✅	no whitespace errors found

N.B. These results were obtained from a build of this Pull Request at a384c3d after being merged into the base branch at 20895af.

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