Added module for a Amsys Differential Presure Sensor I2C AMS 5812-0003-D

Added module for a Amsys Barometric Sensor I2C AMS 5812-0150-A (measuring only)
Added module FlightBenchmark http://paparazzi.enac.fr/wiki/FlightBenchmark
Added until function to the eight pattern

conf/modules/airspeed_amsys.xml

@@ -0,0 +1,25 @@
+<!DOCTYPE module SYSTEM "module.dtd">
+
+<!--
+Airspeed AMSYS module (I2C)
+@param AIRSPEED_AMSYS_SCALE scale factor (default 1.8)
+@param AIRSPEED_AMSYS_OFFSET offset (default 0)
+@param AIRSPEED_AMSYS_I2C_DEV i2c device (default i2c0)
+@flag USE_AIRSPEED to use the data for airspeed control loop
+@flag SENSOR_SYNC_SEND to transmit the data as it is acquired
+-->
+
+<module name="airspeed_amsys" dir="sensors">
+
+  <header>
+    <file name="airspeed_amsys.h"/>
+  </header>
+  <init fun="airspeed_amsys_init()"/>
+  <periodic fun="airspeed_amsys_read_periodic()" freq="10."/>
+  <event fun="AirspeedAmsysEvent()"/>
+
+  <makefile>
+    <file name="airspeed_amsys.c"/>
+  </makefile>
+
+</module>