[COMSUPP] Define WIN32_LEAN_AND_MEAN

This is needed to prevent compile errors, when _INC_WINDOWS is defined.
So far WIN32_LEAN_AND_MEAN is wrongly defined by some idl generated headers.
In VS with native headers similar issues exist.

sdk/lib/comsupp/comsupp.cpp

@@ -9,6 +9,7 @@
 #include <stdarg.h>
 
 #define WIN32_NO_STATUS
+#define WIN32_LEAN_AND_MEAN
 #define _INC_WINDOWS
 
 #include <windef.h>