[FLINK-37790][4/N] introduce model provider related interfaces

[lihaosky]

What is the purpose of the change

Add model provider related interfaces proposed in https://cwiki.apache.org/confluence/display/FLINK/FLIP-525%3A+Model+ML_PREDICT%2C+ML_EVALUATE+Implementation+Design

Brief change log

Introduce following classes:

• ModelProviderFactory
• ModelProvider
• PredictRuntimeProvider
• AsyncPredictRuntimeProvider
• PredictFunction
• AsyncPredictFunction

Modified

• Module to add getModelProviderFactory

Verifying this change

All new interfaces. Test will be added in following up PRs using these interfaces

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? (JavaDocs)

[flinkbot]

CI report:

• 15e9b06 UNKNOWN
• 89220d9 Azure: SUCCESS

Bot commands

The @flinkbot bot supports the following commands:

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

[fsk119]

Thanks for your contribution. I left some comments

[fsk119]

LGTM