[DVC] Add RequestBasedMetaRepository to enable metadata retrieval directly from server

[pthirun]

Summary, imperative, start upper case, don't end with a period

This PR introduces the use of the /store_properties/{store_name} endpoint to retrieve and cache store metadata for the DaVinci client. The endpoint was implemented in the Venice Server in this PR: #1374.

The RequestBasedMetaRepository leverages this endpoint to maintain a cache of Store and SchemaData objects for requested stores. The cache is refreshed by the NativeMetadataRepository, which this new class extends.

By default, this feature is disabled in the ClientConfig passed to the NativeMetadataRepository. The default configuration preserves the current behavior of using the ThinClientMetaStoreBasedRepository. The relevant configuration field is ClientConfig.useRequestBasedMetaRepository. For more details, see NativeMetadataRepository.getInstance.

How was this PR tested?

Unit and Integration test included in PR.

Does this PR introduce any user-facing changes?

• No. You can skip the rest of this section.
• Yes. Make sure to explain your proposed changes and call out the behavior change.

NOTE: behavior will not change by default, feature flag in ClientConfig must be turned on.