Maximize matcher

[Hendrik-code]

adding the maximizeMatcher which matches the following:

• For each reference, links the prediction instance with best score that beats threshold
• Iteratively for the rest, checks if combining the current prediction instance with the second prediction instance makes the matching score better. If yes, merge prediction instances. Otherwise, continue

• results in many-to-one matching scheme.

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[Hendrik-code]

/format

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🤖 Code Formatting Reminder

Hello there! 👋 It looks like the code in this pull request might benefit from some formatting improvements.
Fix the issues locally or use our auto format action by commenting /format on this PR!

[Hendrik-code]

/format

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