Split StimulusProducer=>StimulusBuffer+StimulusProducer

We're getting ready for the last mile of the StimulusBuffer API
and the proto-completion of the LivoxGen1 StimBuffApi.

stimBuffApis/livoxGen1/pcloudDataProducer.h

@@ -4,6 +4,7 @@
 #include <functional>
 #include <atomic>
 #include <user/stimulusProducer.h>
+#include <user/stimulusFrame.h>
 #include <livoxProto1/device.h>
 #include <asynchronousContinuation.h>
 #include <callback.h>
@@ -25,12 +26,25 @@ namespace stim_buff {
 class PcloudDataProducer
 :	public StimulusProducer
 {
+public:
+	class PcloudFormatDesc
+	{
+	public:
+		enum class Format
+		{
+			XYZ,
+			XYZI,
+		};
+
+	public:
+		Format format;
+	};
+
 public:
 	explicit PcloudDataProducer(
 		const std::shared_ptr<device::DeviceAttachmentSpec> &deviceAttachmentSpec,
 		std::shared_ptr<livoxProto1::Device> &device,
 		const PcloudFormatDesc& formatDesc,
-		int histbuffMs,
 		size_t nDgramsPerStagingBufferFrame);
 
 	~PcloudDataProducer() = default;
@@ -61,6 +75,7 @@ public:
 	IoUringAssemblyEngine ioUringAssemblyEngine;
 	StagingBuffer collationBuffer;
 	std::atomic<size_t> nAttachedStimBuffs{0};
+	StimulusFrame tempStimulusFrame;
 
 private:
 	class ProduceFrameReq;