test/*.h: (windows) fix min/max conflict

define NOMINMAX to allow the std:: versions to be used; min/max will be
defined transitively via windows.h otherwise

Change-Id: I692b03fa3e70b7a53962d3fd209498f70f712fed

test/register_state_check.h

@@ -30,7 +30,8 @@
 
 #if defined(_WIN64)
 
-#define _WIN32_LEAN_AND_MEAN
+#define NOMINMAX
+#define WIN32_LEAN_AND_MEAN
 #include <windows.h>
 #include <winnt.h>
 

test/video_source.h

@@ -11,6 +11,8 @@
 #define TEST_VIDEO_SOURCE_H_
 
 #if defined(_WIN32)
+#define NOMINMAX
+#define WIN32_LEAN_AND_MEAN
 #include <windows.h>
 #endif
 #include <cstdio>