Use version and time base constants for writing header

src/lstdpp128/CrateBoard.cpp

@@ -61,8 +61,8 @@ std::string writeListModeContextToBinary(const ListModeContext & listModeContext
 
 	// Allocate the data.
 	uint32_t buffer[4 + boardSize];
-	buffer[0] = 1;
-	buffer[1] = 9;
+	buffer[0] = FORMAT_VERSION;
+	buffer[1] = TIME_BASE;
 	buffer[2] = listModeContext.nbEvents;
 	buffer[3] = boardSize;