Stress tests

[MaxHeimbrock]

Measuring general connection latency, audio latency, video latency and desync.
Based on: https://github.com/livekit/client-sdk-cpp/tree/main/src/tests/stress

[MaxHeimbrock]

Still WIP.
I feel like the sync test combines both video and audio latency tests as well, so we could get rid of the individual tests.
Also the test passes when at least one pulse is detected, which should be 10/10 with those timings.
I also want to test this on device and with a real server instead of local dev.

[MaxHeimbrock]

Todo: revert back to random room names.