[FLINK-37938] ml_evaluation accumulator implementation

[lihaosky]

What is the purpose of the change

Add implementation for ml evaluate UDAF

Brief change log

ml evaluation UDAF implementation. Remove clustering since it's unsupervised.

Verifying this change

Unit test
Will add IT test can restore test later

Does this pull request potentially affect one of the following parts:

• Dependencies (does it add or upgrade a dependency): (no)
• The public API, i.e., is any changed class annotated with @Public(Evolving): (no)
• The serializers: (no)
• The runtime per-record code paths (performance sensitive): (no)
• Anything that affects deployment or recovery: JobManager (and its components), Checkpointing, Kubernetes/Yarn, ZooKeeper: (no)
• The S3 file system connector: (no)

Documentation

• Does this pull request introduce a new feature? (yes)
• If yes, how is the feature documented? (JavaDocs)

[flinkbot]

CI report:

• a40f263 Azure: SUCCESS

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