AP_Compass: 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/AP_Compass/AP_Compass_AK8963.cpp

@@ -14,8 +14,8 @@
    along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 
-#include <AP_Math.h>
-#include <AP_HAL.h>
+#include <AP_Math/AP_Math.h>
+#include <AP_HAL/AP_HAL.h>
 
 #if CONFIG_HAL_BOARD == HAL_BOARD_LINUX
 

libraries/AP_Compass/AP_Compass_AK8963.h

@@ -2,7 +2,7 @@
 #ifndef AP_Compass_AK8963_H
 #define AP_Compass_AK8963_H
 
-#include <AP_HAL.h>
+#include <AP_HAL/AP_HAL.h>
 #include "../AP_Common/AP_Common.h"
 #include "../AP_Math/AP_Math.h"
 

libraries/AP_Compass/AP_Compass_Backend.cpp

@@ -1,6 +1,6 @@
 /// -*- tab-width: 4; Mode: C++; c-basic-offset: 4; indent-tabs-mode: nil -*-
 
-#include <AP_HAL.h>
+#include <AP_HAL/AP_HAL.h>
 #include "Compass.h"
 #include "AP_Compass_Backend.h"
 

libraries/AP_Compass/AP_Compass_HIL.cpp

@@ -20,7 +20,7 @@
  */
 
 
-#include <AP_HAL.h>
+#include <AP_HAL/AP_HAL.h>
 #include "AP_Compass_HIL.h"
 
 extern const AP_HAL::HAL& hal;

libraries/AP_Compass/AP_Compass_HMC5843.cpp

@@ -24,8 +24,8 @@
  */
 
 // AVR LibC Includes
-#include <AP_Math.h>
-#include <AP_HAL.h>
+#include <AP_Math/AP_Math.h>
+#include <AP_HAL/AP_HAL.h>
 
 #include "AP_Compass_HMC5843.h"
 

libraries/AP_Compass/AP_Compass_HMC5843.h

@@ -2,7 +2,7 @@
 #ifndef AP_Compass_HMC5843_H
 #define AP_Compass_HMC5843_H
 
-#include <AP_HAL.h>
+#include <AP_HAL/AP_HAL.h>
 #include "../AP_Common/AP_Common.h"
 #include "../AP_Math/AP_Math.h"
 

libraries/AP_Compass/AP_Compass_PX4.cpp

@@ -20,7 +20,7 @@
  */
 
 
-#include <AP_HAL.h>
+#include <AP_HAL/AP_HAL.h>
 
 #if CONFIG_HAL_BOARD == HAL_BOARD_PX4 || CONFIG_HAL_BOARD == HAL_BOARD_VRBRAIN
 #include "AP_Compass_PX4.h"

libraries/AP_Compass/Compass.cpp

@@ -1,8 +1,8 @@
 /// -*- tab-width: 4; Mode: C++; c-basic-offset: 4; indent-tabs-mode: nil -*-
-#include <AP_HAL.h>
-#include <AP_Progmem.h>
+#include <AP_HAL/AP_HAL.h>
+#include <AP_Progmem/AP_Progmem.h>
 #include "Compass.h"
-#include <AP_Vehicle.h>
+#include <AP_Vehicle/AP_Vehicle.h>
 
 extern AP_HAL::HAL& hal;
 

libraries/AP_Compass/Compass.h

@@ -3,11 +3,11 @@
 #define Compass_h
 
 #include <inttypes.h>
-#include <AP_Common.h>
-#include <AP_Param.h>
-#include <AP_Math.h>
-#include <AP_Declination.h> // ArduPilot Mega Declination Helper Library
-#include <AP_HAL.h>
+#include <AP_Common/AP_Common.h>
+#include <AP_Param/AP_Param.h>
+#include <AP_Math/AP_Math.h>
+#include <AP_Declination/AP_Declination.h> // ArduPilot Mega Declination Helper Library
+#include <AP_HAL/AP_HAL.h>
 #include "AP_Compass_Backend.h"
 
 // compass product id

libraries/AP_Compass/examples/AP_Compass_test/AP_Compass_test.cpp

@@ -3,40 +3,40 @@
  *       Code by Jordi MuÒoz and Jose Julio. DIYDrones.com
  */
 
-#include <AP_Common.h>
-#include <AP_Progmem.h>
-#include <AP_Param.h>
-#include <StorageManager.h>
-#include <AP_HAL.h>
-#include <AP_HAL_AVR.h>
-#include <AP_HAL_PX4.h>
-#include <AP_HAL_Linux.h>
-#include <AP_HAL_FLYMAPLE.h>
-#include <AP_HAL_Empty.h>
-#include <AP_HAL_VRBRAIN.h>
+#include <AP_Common/AP_Common.h>
+#include <AP_Progmem/AP_Progmem.h>
+#include <AP_Param/AP_Param.h>
+#include <StorageManager/StorageManager.h>
+#include <AP_HAL/AP_HAL.h>
+#include <AP_HAL_AVR/AP_HAL_AVR.h>
+#include <AP_HAL_PX4/AP_HAL_PX4.h>
+#include <AP_HAL_Linux/AP_HAL_Linux.h>
+#include <AP_HAL_FLYMAPLE/AP_HAL_FLYMAPLE.h>
+#include <AP_HAL_Empty/AP_HAL_Empty.h>
+#include <AP_HAL_VRBRAIN/AP_HAL_VRBRAIN.h>
 
-#include <AP_Math.h>    // ArduPilot Mega Vector/Matrix math Library
-#include <AP_Declination.h>
-#include <AP_Compass.h> // Compass Library
-#include <GCS_MAVLink.h>
-#include <AP_Scheduler.h>
-#include <DataFlash.h>
-#include <AP_GPS.h>
-#include <AP_Vehicle.h>
-#include <AP_InertialSensor.h>
-#include <Filter.h>
-#include <AP_Baro.h>
-#include <AP_AHRS.h>
-#include <AP_Airspeed.h>
-#include <AP_NavEKF.h>
-#include <AP_ADC.h>
-#include <AP_ADC_AnalogSource.h>
-#include <AP_Notify.h>
-#include <AP_Mission.h>
-#include <AP_Terrain.h>
-#include <AP_Rally.h>
-#include <AP_BattMonitor.h>
-#include <AP_RangeFinder.h>
+#include <AP_Math/AP_Math.h>    // ArduPilot Mega Vector/Matrix math Library
+#include <AP_Declination/AP_Declination.h>
+#include <AP_Compass/AP_Compass.h> // Compass Library
+#include <GCS_MAVLink/GCS_MAVLink.h>
+#include <AP_Scheduler/AP_Scheduler.h>
+#include <DataFlash/DataFlash.h>
+#include <AP_GPS/AP_GPS.h>
+#include <AP_Vehicle/AP_Vehicle.h>
+#include <AP_InertialSensor/AP_InertialSensor.h>
+#include <Filter/Filter.h>
+#include <AP_Baro/AP_Baro.h>
+#include <AP_AHRS/AP_AHRS.h>
+#include <AP_Airspeed/AP_Airspeed.h>
+#include <AP_NavEKF/AP_NavEKF.h>
+#include <AP_ADC/AP_ADC.h>
+#include <AP_ADC_AnalogSource/AP_ADC_AnalogSource.h>
+#include <AP_Notify/AP_Notify.h>
+#include <AP_Mission/AP_Mission.h>
+#include <AP_Terrain/AP_Terrain.h>
+#include <AP_Rally/AP_Rally.h>
+#include <AP_BattMonitor/AP_BattMonitor.h>
+#include <AP_RangeFinder/AP_RangeFinder.h>
 
 const AP_HAL::HAL& hal = AP_HAL_BOARD_DRIVER;