AP_Module: update example baro include

libraries/AP_Module/examples/ModuleTest/ModuleTest.cpp

@@ -6,6 +6,7 @@
 #include <AP_HAL/AP_HAL.h>
 #include <AP_Module/AP_Module.h>
 #include <AP_GPS/AP_GPS.h>
+#include <AP_Baro/AP_Baro.h>
 
 void setup();
 void loop();