add support for statestore query API

[dmitsh]

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

It should be available via the SDK

[withinboredom]

It looks like only Mongo supports the query API. Right now, integration tests are using Redis under the hood, so until that is a supported queryable state store, this won't be implemented.

[dmitsh]

@withinboredom , both MongoDB and CosmosDB have been added to integration and e2e tests for Query API:
dapr/dapr#3916