Title: Expose stats store singleton via Api::Api
Description: We have a use case where we want to read stats exported by the xDS APIs from a filter. The stats store isn't globally accessible right now, and we'd rather not make admin requests to /stats from the filter. Could we expose the stats store via Api::Api, thus making it accessible to the filter via FactoryContext?
Title: Expose stats store singleton via Api::Api
Description: We have a use case where we want to read stats exported by the xDS APIs from a filter. The stats store isn't globally accessible right now, and we'd rather not make admin requests to /stats from the filter. Could we expose the stats store via Api::Api, thus making it accessible to the filter via FactoryContext?