A few features and improvements#7

xianshijing-lk merged 5 commits intomainlivekit/client-sdk-cpp:mainfrom

sxian/CLT-2260/implement_room_delegate_async_cbs_partcipant_track_statslivekit/client-sdk-cpp:sxian/CLT-2260/implement_room_delegate_async_cbs_partcipant_track_statsCopy head branch name to clipboard