Rename StimulusBuffer=>StimulusProducer

Next we'll split the StimulusBuffer-related stuff into a new class
StimulusBuffer.

stimBuffApis/livoxGen1/pcloudDataProducer.cpp

@@ -25,7 +25,7 @@ PcloudDataProducer::PcloudDataProducer(
 	const PcloudFormatDesc& formatDesc,
 	int histbuffMs,
 	size_t nDgramsPerStagingBufferFrame)
-:	StimulusBuffer(
+:	StimulusProducer(
 		deviceAttachmentSpec,
 		static_cast<size_t>(histbuffMs / CONFIG_STIMBUFF_FRAME_PERIOD_MS),
 		openClInputConstraints,
@@ -87,13 +87,13 @@ void PcloudDataProducer::start()
 	}
 
 	// Call base class start() as the final step
-	StimulusBuffer::start();
+	StimulusProducer::start();
 }
 
 void PcloudDataProducer::stop()
 {
 	// Call base class stop() as the first step
-	StimulusBuffer::stop();
+	StimulusProducer::stop();
 	// Call ioUringAssemblyEngine stop() as the final step
 	openClCollatingAndMeshingEngine.finalize();
 	ioUringAssemblyEngine.finalize();
@@ -211,9 +211,9 @@ void PcloudDataProducer::produceFrameReq(
 	smo::Callback<produceFrameReqCbFn> callback)
 {
 	/**	EXPLANATION:
-	 * We shouldn't acquire the StimulusBuffer::shouldContinueLock here because
+	 * We shouldn't acquire the StimulusProducer::shouldContinueLock here because
 	 * this function is called from
-	 * StimulusBuffer::stimFrameProductionTimesliceInd(), which is already
+	 * StimulusProducer::stimFrameProductionTimesliceInd(), which is already
 	 * holding the lock.
 	 */
 	auto caller = smoHooksPtr->ComponentThread_getSelf();