maa: add global maa.h and maa.hpp and stop using /usr/include/maa/

* pkg-config now only sees maa.h & maa.hpp
* usage of maa/*.{h,hpp} is still allowed
* examples updated to use maa.{h,hpp}

Signed-off-by: Brendan Le Foll <brendan.le.foll@intel.com>

examples/c++/AioA0.cpp

@@ -23,7 +23,7 @@
  */
 
 //! [Interesting]
-#include "aio.hpp"
+#include "maa.hpp"
 
 int main ()
 {

examples/c++/Blink-IO.cpp

@@ -29,7 +29,7 @@
 #include <stdlib.h>
 #include <unistd.h>
 
-#include "gpio.hpp"
+#include "maa.hpp"
 #define DEFAULT_IOPIN 8
 
 static int iopin;

examples/c++/I2c-compass.cpp

@@ -26,7 +26,7 @@
 #include <unistd.h>
 #include <signal.h>
 
-#include "i2c.hpp"
+#include "maa.hpp"
 #include "math.h"
 
 #define MAX_BUFFER_LENGTH 6

examples/c++/Pwm3-cycle.cpp

@@ -25,7 +25,7 @@
 #include <unistd.h>
 #include <signal.h>
 
-#include "pwm.hpp"
+#include "maa.hpp"
 
 int running = 0;
 

examples/c++/Spi-pot.cpp

@@ -26,7 +26,7 @@
 #include <signal.h>
 #include <stdint.h>
 
-#include "spi.hpp"
+#include "maa.hpp"
 
 int running = 0;