AP_Airspeed: 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_Airspeed/AP_Airspeed.cpp

@@ -18,16 +18,16 @@
  */
 
 
-#include <AP_HAL.h>
-#include <AP_Math.h>
-#include <AP_Common.h>
-#include <AP_ADC.h>
-#include <AP_Airspeed.h>
+#include <AP_HAL/AP_HAL.h>
+#include <AP_Math/AP_Math.h>
+#include <AP_Common/AP_Common.h>
+#include <AP_ADC/AP_ADC.h>
+#include "AP_Airspeed.h"
 
 extern const AP_HAL::HAL& hal;
 
 #if CONFIG_HAL_BOARD == HAL_BOARD_APM1
- #include <AP_ADC_AnalogSource.h>
+ #include <AP_ADC_AnalogSource/AP_ADC_AnalogSource.h>
  #define ARSPD_DEFAULT_PIN 64
 #elif CONFIG_HAL_BOARD == HAL_BOARD_APM2
  #define ARSPD_DEFAULT_PIN 0

libraries/AP_Airspeed/AP_Airspeed.h

@@ -3,15 +3,15 @@
 #ifndef __AP_AIRSPEED_H__
 #define __AP_AIRSPEED_H__
 
-#include <AP_Common.h>
-#include <AP_HAL.h>
-#include <AP_Param.h>
-#include <GCS_MAVLink.h>
-#include <AP_Vehicle.h>
-#include <AP_Airspeed_Backend.h>
-#include <AP_Airspeed_analog.h>
-#include <AP_Airspeed_PX4.h>
-#include <AP_Airspeed_I2C.h>
+#include <AP_Common/AP_Common.h>
+#include <AP_HAL/AP_HAL.h>
+#include <AP_Param/AP_Param.h>
+#include <GCS_MAVLink/GCS_MAVLink.h>
+#include <AP_Vehicle/AP_Vehicle.h>
+#include "AP_Airspeed_Backend.h"
+#include "AP_Airspeed_analog.h"
+#include "AP_Airspeed_PX4.h"
+#include "AP_Airspeed_I2C.h"
 
 class Airspeed_Calibration {
 public:

libraries/AP_Airspeed/AP_Airspeed_Backend.h

@@ -22,8 +22,8 @@
 #ifndef __AP_AIRSPEED_BACKEND_H__
 #define __AP_AIRSPEED_BACKEND_H__
 
-#include <AP_Common.h>
-#include <AP_HAL.h>
+#include <AP_Common/AP_Common.h>
+#include <AP_HAL/AP_HAL.h>
 
 class AP_Airspeed_Backend {
 public:

libraries/AP_Airspeed/AP_Airspeed_I2C.cpp

@@ -19,10 +19,10 @@
   backend driver for airspeed from a I2C MS4525D0 sensor
  */
 
-#include <AP_Common.h>
-#include <AP_HAL.h>
-#include <AP_Math.h>
-#include <AP_Airspeed_I2C.h>
+#include <AP_Common/AP_Common.h>
+#include <AP_HAL/AP_HAL.h>
+#include <AP_Math/AP_Math.h>
+#include "AP_Airspeed_I2C.h"
 
 extern const AP_HAL::HAL& hal;
 

libraries/AP_Airspeed/AP_Airspeed_I2C.h

@@ -22,8 +22,8 @@
 #ifndef __AP_AIRSPEED_I2C_H__
 #define __AP_AIRSPEED_I2C_H__
 
-#include <AP_HAL.h>
-#include <AP_Airspeed_Backend.h>
+#include <AP_HAL/AP_HAL.h>
+#include "AP_Airspeed_Backend.h"
 
 class AP_Airspeed_I2C : public AP_Airspeed_Backend 
 {

libraries/AP_Airspeed/AP_Airspeed_I2C_PX4.h

@@ -22,8 +22,8 @@
 #ifndef __AP_AIRSPEED_I2C_H__
 #define __AP_AIRSPEED_I2C_H__
 
-#include <AP_Common.h>
-#include <AP_HAL.h>
+#include <AP_Common/AP_Common.h>
+#include <AP_HAL/AP_HAL.h>
 
 class AP_Airspeed_I2C_PX4 : AP_Airspeed_I2C {
 public:

libraries/AP_Airspeed/AP_Airspeed_PX4.cpp

@@ -18,11 +18,11 @@
  */
 
 
-#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_Airspeed_PX4.h>
+#include "AP_Airspeed_PX4.h"
 #include <drivers/drv_airspeed.h>
 #include <uORB/topics/differential_pressure.h>
 #include <sys/types.h>

libraries/AP_Airspeed/AP_Airspeed_PX4.h

@@ -22,8 +22,8 @@
 #ifndef __AP_AIRSPEED_PX4_H__
 #define __AP_AIRSPEED_PX4_H__
 
-#include <AP_HAL.h>
-#include <AP_Airspeed_Backend.h>
+#include <AP_HAL/AP_HAL.h>
+#include "AP_Airspeed_Backend.h"
 
 class AP_Airspeed_PX4 : public AP_Airspeed_Backend {
 public:

libraries/AP_Airspeed/AP_Airspeed_analog.cpp

@@ -18,12 +18,12 @@
  */
 
 
-#include <AP_HAL.h>
-#include <AP_Math.h>
-#include <AP_Common.h>
-#include <AP_ADC.h>
-#include <AP_ADC_AnalogSource.h>
-#include <AP_Airspeed.h>
+#include <AP_HAL/AP_HAL.h>
+#include <AP_Math/AP_Math.h>
+#include <AP_Common/AP_Common.h>
+#include <AP_ADC/AP_ADC.h>
+#include <AP_ADC_AnalogSource/AP_ADC_AnalogSource.h>
+#include "AP_Airspeed.h"
 
 extern const AP_HAL::HAL& hal;
 

libraries/AP_Airspeed/AP_Airspeed_analog.h

@@ -3,8 +3,8 @@
 #ifndef __AP_AIRSPEED_ANALOG_H__
 #define __AP_AIRSPEED_ANALOG_H__
 
-#include <AP_HAL.h>
-#include <AP_Airspeed_Backend.h>
+#include <AP_HAL/AP_HAL.h>
+#include "AP_Airspeed_Backend.h"
 
 class AP_Airspeed_Analog : public AP_Airspeed_Backend
 {

libraries/AP_Airspeed/Airspeed_Calibration.cpp

@@ -6,10 +6,10 @@
  *
  */
 
-#include <AP_HAL.h>
-#include <AP_Math.h>
-#include <AP_Common.h>
-#include <AP_Airspeed.h>
+#include <AP_HAL/AP_HAL.h>
+#include <AP_Math/AP_Math.h>
+#include <AP_Common/AP_Common.h>
+#include "AP_Airspeed.h"
 
 extern const AP_HAL::HAL& hal;
 

libraries/AP_Airspeed/examples/Airspeed/Airspeed.cpp

@@ -19,37 +19,37 @@
  *
  */
 
-#include <AP_Common.h>
-#include <AP_Progmem.h>
-#include <AP_Param.h>
-#include <AP_Math.h>
-#include <AP_HAL.h>
-#include <AP_HAL_AVR.h>
-#include <AP_HAL_Linux.h>
-#include <AP_HAL_Empty.h>
-#include <AP_ADC.h>
-#include <AP_ADC_AnalogSource.h>
-#include <Filter.h>
-#include <AP_Buffer.h>
-#include <AP_Airspeed.h>
-#include <AP_Vehicle.h>
-#include <AP_Notify.h>
-#include <AP_Compass.h>
-#include <AP_Declination.h>
-#include <AP_AHRS.h>
-#include <AP_NavEKF.h>
-#include <AP_Terrain.h>
-#include <DataFlash.h>
-#include <AP_Baro.h>
-#include <GCS_MAVLink.h>
-#include <AP_Mission.h>
-#include <StorageManager.h>
-#include <AP_Terrain.h>
-#include <AP_GPS.h>
-#include <AP_InertialSensor.h>
-#include <AP_BattMonitor.h>
-#include <AP_Rally.h>
-#include <AP_RangeFinder.h>
+#include <AP_Common/AP_Common.h>
+#include <AP_Progmem/AP_Progmem.h>
+#include <AP_Param/AP_Param.h>
+#include <AP_Math/AP_Math.h>
+#include <AP_HAL/AP_HAL.h>
+#include <AP_HAL_AVR/AP_HAL_AVR.h>
+#include <AP_HAL_Linux/AP_HAL_Linux.h>
+#include <AP_HAL_Empty/AP_HAL_Empty.h>
+#include <AP_ADC/AP_ADC.h>
+#include <AP_ADC_AnalogSource/AP_ADC_AnalogSource.h>
+#include <Filter/Filter.h>
+#include <AP_Buffer/AP_Buffer.h>
+#include <AP_Airspeed/AP_Airspeed.h>
+#include <AP_Vehicle/AP_Vehicle.h>
+#include <AP_Notify/AP_Notify.h>
+#include <AP_Compass/AP_Compass.h>
+#include <AP_Declination/AP_Declination.h>
+#include <AP_AHRS/AP_AHRS.h>
+#include <AP_NavEKF/AP_NavEKF.h>
+#include <AP_Terrain/AP_Terrain.h>
+#include <DataFlash/DataFlash.h>
+#include <AP_Baro/AP_Baro.h>
+#include <GCS_MAVLink/GCS_MAVLink.h>
+#include <AP_Mission/AP_Mission.h>
+#include <StorageManager/StorageManager.h>
+#include <AP_Terrain/AP_Terrain.h>
+#include <AP_GPS/AP_GPS.h>
+#include <AP_InertialSensor/AP_InertialSensor.h>
+#include <AP_BattMonitor/AP_BattMonitor.h>
+#include <AP_Rally/AP_Rally.h>
+#include <AP_RangeFinder/AP_RangeFinder.h>
 
 #if CONFIG_HAL_BOARD == HAL_BOARD_APM1
 AP_ADC_ADS7844 apm1_adc;