[all] update KVMFR to provide cursor hotspot information

This commit bumps the KVMFR protocol version as it adds additional
hotspot x & y fields to the KVMFRCursor struct. This corrects the issue
of invalid alignment of the local mouse when the shape has an offset
such as the 'I' beam.

host/include/interface/capture.h

@@ -67,6 +67,7 @@ typedef struct CapturePointer
 
   bool          shapeUpdate;
   CaptureFormat format;
+  unsigned int  hx, hy;
   unsigned int  width, height;
   unsigned int  pitch;
 }