[BP-1.17][FLINK-32565][table] Support Cast From NUMBER to BYTES

[hanyuzheng7]

What is the purpose of the change

Implement CAST from NUMBER to BINARY/VARBINART/BYTES

Brief change log

CAST from NUMBER to BINARY/VARBINART/BYTES for Table API and SQL

Syntax:
CAST(BYTES AS NUMBER)

Examples:

Flink SQL> select cast(1 as BYTES);
res: x'31'

Flink SQL> select cast(cast(1 as DOUBLE) as BYTES);
res: x'312e30'

Flink SQL> select cast(cast(1 as BIGINT) as BYTES);
res: x'31'

Verifying this change

• This change added tests in CastFunctionITCase.

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): (yes)
• 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? (docs)

[flinkbot]

CI report:

• 8d49d91 Azure: FAILURE

Bot commands

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• @flinkbot run azure re-run the last Azure build

[MartijnVisser]

Closing this PR since we don't backport new features into existing releases