Cherry-picking R21 precision JetTruthLabeling definitions into master
This cherry-picks the changes merged in !35343 (merged) to 21.2 into master. The changes add the first step towards R21 precision large-R jet truth label definitions.
This cherry-picks the changes merged in !35343 (merged) to 21.2 into master. The changes add the first step towards R21 precision large-R jet truth label definitions.