Added declaration for SignalObjectAndWait.

include/winbase.h

@@ -1496,6 +1496,7 @@ BOOL        WINAPI SetThreadToken(PHANDLE,HANDLE);
 BOOL        WINAPI SetTimeZoneInformation(const LPTIME_ZONE_INFORMATION);
 BOOL        WINAPI SetWaitableTimer(HANDLE,const LARGE_INTEGER*,LONG,PTIMERAPCROUTINE,LPVOID,BOOL);
 BOOL        WINAPI SetupComm(HANDLE,DWORD,DWORD);
+DWORD       WINAPI SignalObjectAndWait(HANDLE,HANDLE,DWORD,BOOL);
 VOID        WINAPI Sleep(DWORD);
 DWORD       WINAPI SleepEx(DWORD,BOOL);
 DWORD       WINAPI SuspendThread(HANDLE);