Added cFile::Flush().

This is useful when using cFile as a log file and we know the server may crash after a specific write, so we flush the file before continuing.

src/OSSupport/File.cpp

@@ -450,3 +450,12 @@ int cFile::Printf(const char * a_Fmt, ...)
 
 
 
+
+void cFile::Flush(void)
+{
+	fflush(m_File);
+}
+
+
+
+