Add system tracing skeleton.

client/TracySysTrace.hpp

@@ -0,0 +1,21 @@
+#ifndef __TRACYSYSTRACE_HPP__
+#define __TRACYSYSTRACE_HPP__
+
+#if defined _WIN32 || defined __CYGWIN__
+#  define TRACY_HAS_SYSTEM_TRACING
+#endif
+
+#ifdef TRACY_HAS_SYSTEM_TRACING
+
+namespace tracy
+{
+
+bool SysTraceStart();
+void SysTraceStop();
+void SysTraceWorker( void* ptr );
+
+}
+
+#endif
+
+#endif