Add a performance test that measures the time it takes Dapr to save data into a state store.

The important piece that is being tested is the processing that Dapr does before saving to the state store. This test should not benchmark the component itself.

For that purpose, a baseline test scenario would have an app that saves a 1kb payload to Redis, followed by a test app that uses Dapr to save a 1k payload to Redis.

The added latency is calculated by subtracting the baseline latency from the Dapr latency.