ImpulseSensor.p: move FIFO monitoring counters (ctFifoEvent, ctFifoStalled) into the _debug_track internal state variable instead of _This (which is published to the app via the app_ImpulseSensorEvent() callback handler).
ImpulseSensor.p: move FIFO monitoring counters (ctFifoEvent, ctFifoStalled) into the _debug_track internal state variable instead of _This (which is published to the app via the app_ImpulseSensorEvent() callback handler).