MINIFICPP-2502 Add processorBulletins C2 metric node to FlowInformation

[lordgamez]

https://issues.apache.org/jira/browse/MINIFICPP-2502

Depends on #1918

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[Copilot]

Copilot reviewed 36 out of 37 changed files in this pull request and generated no comments.

Files not reviewed (1)

• conf/minifi.properties: Language not supported

Comments suppressed due to low confidence (2)

libminifi/src/core/ProcessGroup.cpp:495

• [nitpick] Consider standardizing or documenting the delimiter used for building the group path to ensure consistency, and verify that any trailing spaces are intentional.

path.insert(0, parent->getName() + " / ");

libminifi/include/core/ProcessorConfig.h:44

• Ensure that the field 'bulletinLevel' is consistently initialized and handled across all processor configuration code paths to avoid unintentional empty values.

std::string bulletinLevel;