[idd] common: use CSRWLock throughout the drivers

Make CSRWLock own the native lock and provide scoped guards for shared,
exclusive, early-unlock, and non-blocking use.

Replace direct SRW lock management throughout the IDD, input driver,
and helper while preserving the existing lock scopes.

idd/LGIdd/capture/CSoftwareFrameProcessor.h

@@ -32,7 +32,7 @@ public:
   CSoftwareFrameProcessor(IFrameTransport * transport,
     std::shared_ptr<CD3D12Device> dx12,
     CPostProcessor postProcessors[CAPTURE_PIPELINE_SLOTS],
-    SRWLOCK * pipelineLock, HANDLE terminateEvent);
+    CSRWLock * pipelineLock, HANDLE terminateEvent);
 
   bool Submit(const FrameSubmission& submission) override;
   bool HasReadyFrame() const override { return false; }