SITL: standardize inclusion of libaries headers

This commit changes the way libraries headers are included in source files:

 - If the header is in the same directory the source belongs to, so the
 notation '#include ""' is used with the path relative to the directory
 containing the source.

 - If the header is outside the directory containing the source, then we use
 the notation '#include <>' with the path relative to libraries folder.

Some of the advantages of such approach:

 - Only one search path for libraries headers.

 - OSs like Windows may have a better lookup time.

libraries/SITL/SIM_Aircraft.cpp

@@ -17,9 +17,9 @@
   parent class for aircraft simulators
 */
 
-#include <AP_HAL.h>
+#include <AP_HAL/AP_HAL.h>
 #if CONFIG_HAL_BOARD == HAL_BOARD_SITL
-#include <AP_Common.h>
+#include <AP_Common/AP_Common.h>
 #include "SIM_Aircraft.h"
 #include <unistd.h>
 #include <sys/time.h>

libraries/SITL/SIM_Aircraft.h

@@ -21,8 +21,8 @@
 #define _SIM_AIRCRAFT_H
 
 #include "SITL.h"
-#include <AP_Common.h>
-#include <AP_Math.h>
+#include <AP_Common/AP_Common.h>
+#include <AP_Math/AP_Math.h>
 
 /*
   parent class for all simulator types

libraries/SITL/SIM_Balloon.cpp

@@ -17,7 +17,7 @@
   balloon simulator class
 */
 
-#include <AP_HAL.h>
+#include <AP_HAL/AP_HAL.h>
 #if CONFIG_HAL_BOARD == HAL_BOARD_SITL
 #include "SIM_Balloon.h"
 #include <stdio.h>

libraries/SITL/SIM_CRRCSim.cpp

@@ -17,7 +17,7 @@
   simulator connector for ardupilot version of CRRCSim
 */
 
-#include <AP_HAL.h>
+#include <AP_HAL/AP_HAL.h>
 #if CONFIG_HAL_BOARD == HAL_BOARD_SITL
 #include "SIM_CRRCSim.h"
 #include <stdio.h>

libraries/SITL/SIM_CRRCSim.h

@@ -21,7 +21,7 @@
 #define _SIM_CRRCSIM_H
 
 #include "SIM_Aircraft.h"
-#include <utility/Socket.h>
+#include <AP_HAL/utility/Socket.h>
 
 /*
   a CRRCSim simulator

libraries/SITL/SIM_Gazebo.cpp

@@ -17,7 +17,7 @@
   simulator connector for ardupilot version of Gazebo
 */
 
-#include <AP_HAL.h>
+#include <AP_HAL/AP_HAL.h>
 #if CONFIG_HAL_BOARD == HAL_BOARD_SITL
 #include "SIM_Gazebo.h"
 #include <stdio.h>

libraries/SITL/SIM_Gazebo.h

@@ -21,7 +21,7 @@
 #define _SIM_GAZEBO_H
 
 #include "SIM_Aircraft.h"
-#include <utility/Socket.h>
+#include <AP_HAL/utility/Socket.h>
 
 /*
   Gazebo simulator

libraries/SITL/SIM_Gimbal.h

@@ -22,7 +22,7 @@
 
 #include "SIM_Aircraft.h"
 #if CONFIG_HAL_BOARD == HAL_BOARD_SITL
-#include <utility/Socket.h>
+#include <AP_HAL/utility/Socket.h>
 
 class Gimbal
 {

libraries/SITL/SIM_Helicopter.cpp

@@ -17,7 +17,7 @@
   helicopter simulator class
 */
 
-#include <AP_HAL.h>
+#include <AP_HAL/AP_HAL.h>
 #if CONFIG_HAL_BOARD == HAL_BOARD_SITL
 #include "SIM_Helicopter.h"
 #include <stdio.h>

libraries/SITL/SIM_JSBSim.cpp

@@ -17,7 +17,7 @@
   simulator connector for ardupilot version of JSBSim
 */
 
-#include <AP_HAL.h>
+#include <AP_HAL/AP_HAL.h>
 #if CONFIG_HAL_BOARD == HAL_BOARD_SITL
 
 #include "SIM_JSBSim.h"

libraries/SITL/SIM_JSBSim.h

@@ -21,7 +21,7 @@
 #define _SIM_JSBSIM_H
 
 #include "SIM_Aircraft.h"
-#include <utility/Socket.h>
+#include <AP_HAL/utility/Socket.h>
 
 /*
   a Jsbsim simulator

libraries/SITL/SIM_Multicopter.cpp

@@ -17,7 +17,7 @@
   multicopter simulator class
 */
 
-#include <AP_HAL.h>
+#include <AP_HAL/AP_HAL.h>
 #if CONFIG_HAL_BOARD == HAL_BOARD_SITL
 #include "SIM_Multicopter.h"
 #include <stdio.h>

libraries/SITL/SIM_Rover.cpp

@@ -17,7 +17,7 @@
   rover simulator class
 */
 
-#include <AP_HAL.h>
+#include <AP_HAL/AP_HAL.h>
 #if CONFIG_HAL_BOARD == HAL_BOARD_SITL
 #include "SIM_Rover.h"
 #include <stdio.h>

libraries/SITL/SIM_last_letter.cpp

@@ -17,7 +17,7 @@
   simulator connector for ardupilot version of last_letter
 */
 
-#include <AP_HAL.h>
+#include <AP_HAL/AP_HAL.h>
 #if CONFIG_HAL_BOARD == HAL_BOARD_SITL
 #include "SIM_last_letter.h"
 #include <stdio.h>

libraries/SITL/SIM_last_letter.h

@@ -21,7 +21,7 @@
 #define _SIM_LAST_LETTER_H
 
 #include "SIM_Aircraft.h"
-#include <utility/Socket.h>
+#include <AP_HAL/utility/Socket.h>
 
 /*
   a last_letter simulator

libraries/SITL/SITL.cpp

@@ -18,10 +18,10 @@
     SITL.cpp - software in the loop state
 */
 
-#include <AP_Common.h>
-#include <AP_HAL.h>
-#include <GCS_MAVLink.h>
-#include <SITL.h>
+#include <AP_Common/AP_Common.h>
+#include <AP_HAL/AP_HAL.h>
+#include <GCS_MAVLink/GCS_MAVLink.h>
+#include "SITL.h"
 
 extern const AP_HAL::HAL& hal;
 

libraries/SITL/SITL.h

@@ -3,11 +3,11 @@
 #ifndef __SITL_H__
 #define __SITL_H__
 
-#include <AP_Param.h>
-#include <AP_Common.h>
-#include <AP_Math.h>
-#include <GCS_MAVLink.h>
-#include <DataFlash.h>
+#include <AP_Param/AP_Param.h>
+#include <AP_Common/AP_Common.h>
+#include <AP_Math/AP_Math.h>
+#include <GCS_MAVLink/GCS_MAVLink.h>
+#include <DataFlash/DataFlash.h>
 
 struct PACKED sitl_fdm {
     // this is the packet sent by the simulator