Async: Drop-in SyncCancelerForAsyncWork without execUncancelableSegment*

We're doing this to prep for the coro port

stimBuffApis/livoxGen1/openClCollatingAndMeshingEngine.h

@@ -15,7 +15,7 @@
 #include <CL/cl.h>
 #include <spinscale/asynchronousLoop.h>
 #include <spinscale/cps/callback.h>
-#include <spinscale/spinLock.h>
+#include <spinscale/syncCancelerForAsyncWork.h>
 #include <user/stimulusFrame.h>
 #include <user/stagingBuffer.h>
 #include <user/frameAssemblyDesc.h>
@@ -150,8 +150,7 @@ private:
 	cl_mem clAverageIntensityBuffer;
 
 	// State tracking
-	sscl::SpinLock shouldAcceptRequestsLock;
-	bool shouldAcceptRequests;
+	sscl::SyncCancelerForAsyncWork openClCollMeshEngnCanceler;
 	bool compactIsRunning;
 	bool collateIsRunning;
 	cl_event currentCompactKernelEvent;