add support for statestore query API

[dmitsh]

Describe the proposal

This feature is implemented in dapr runtime: dapr/dapr#3662

It should be available in the SDK

Also, add integration test validating this feature in SDK.

[artursouza]

Because this API is in alpha, it should probably be in a separate (new) client interface.

[mukundansundar]

/assign

[dmitsh]

Thank you @mukundansundar for taking over this issue.
If that could help, I put together a corresponding PR for go-sdk: dapr/go-sdk#216

[artursouza]

https://azure.github.io/azure-sdk/java_introduction.html#java-models-builder