threadPool, prepare to optional async run()
change return value of run()
MuteMode -> CaptureMode
setStreamCaptureMode()
change LTest API, call by object not by class
rename threadPool to asyncTaskExecuter
implement async run
rename async to threads
add async example
fix lost mute/capturing
add async example (now for real)
fix project file (renamed file)
fix project file (add async example to project)
sync managedFixture