ATR-19309: Code changes in b-jet chain defs for supporting HH4b trigger chains

Description: code changes (as minimal as possible) for HH->4b chains in v8 menu. These changes check the chain name has bXX instead bmv2c10XX and imposes a split configuration in a NON-AllTE fashion (AllTE creates chain defs problems). These code changes should only effect these new chains, thus they will keep the b-jet code back-compatible.

Jira: ATR-19309

Tagging @lidiaz and @jmontejo

This merge request affects 1 package:

• Trigger/TriggerCommon/TriggerMenu

added 21.3 Trigger TriggerMenu review-pending-level-1 labels

CI Result SUCCESS

	Athena
externals
cmake
make
required tests
optional tests

Full details available at NICOS MR-20849-2019-02-02-13-43
Athena: number of compilation errors 0, warnings 166
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added review-approved label and removed review-pending-level-1 label

merged

mentioned in commit ffdf234a

added sweep:done label

Sweep summary
successful:

• 21.9

(see https://aiatlas154.cern.ch/jenkins/job/auto_git_sweeps/670/console for details)

mentioned in commit b0d00782

mentioned in merge request !20892 (merged)

mentioned in commit a896f637