Libspinscale: Initial top-level SMO port to coroutine framework

We haven't ported everything. Just the top-level methods. We'll
dig in to the leaf stuff later. Surprisingly, this all went without
any real difficulties.

Runs like a charm on first try.

stimBuffApis/livoxGen1/pcloudStimulusProducer.cpp

@@ -426,7 +426,7 @@ void PcloudStimulusProducer::stimFrameProductionTimesliceInd()
 }
 
 class PcloudStimulusProducer::ProduceFrameReq
-:	public sscl::PostedAsynchronousContinuation<produceFrameReqCbFn>
+:	public sscl::cps::PostedAsynchronousContinuation<produceFrameReqCbFn>
 {
 private:
 	PcloudStimulusProducer& pcloudProducer;
@@ -440,8 +440,8 @@ public:
 	ProduceFrameReq(
 		PcloudStimulusProducer& producer,
 		const std::shared_ptr<sscl::ComponentThread>& caller,
-		sscl::Callback<produceFrameReqCbFn> cb)
-	:	sscl::PostedAsynchronousContinuation<produceFrameReqCbFn>(caller, cb),
+		sscl::cps::Callback<produceFrameReqCbFn> cb)
+	:	sscl::cps::PostedAsynchronousContinuation<produceFrameReqCbFn>(caller, cb),
 	pcloudProducer(producer),
 	frameAssemblyResult(0),
 	stimulusFrame(producer.tempStimulusFrame)
@@ -724,7 +724,7 @@ public:
 };
 
 void PcloudStimulusProducer::produceFrameReq(
-	sscl::Callback<produceFrameReqCbFn> callback)
+	sscl::cps::Callback<produceFrameReqCbFn> callback)
 {
 	/**	EXPLANATION:
 	 * We shouldn't acquire the StimulusProducer::shouldContinueLock here because