upm: enable LIDAR-Lite V3 Optical Distance Measurement sensor library

and example

LIDAR-Lite v3, a compact, high-performance optical distance measurement
sensor from Garmin™. It is the ideal solution for drone, robot or unmanned
vehicle applications.

The library provided is libupm-lidarlitev3.so
The example provided is lidarlitev3.cxx where it will print the distance
of object/obstacle from the sensor.

The image of the sensor is at docs/images/lidarlitev3.jpg

Signed-off-by: Saloni Jain <saloni.jain@tcs.com>
Signed-off-by: Niti Rohilla <niti.rohilla@tcs.com>
Signed-off-by: Abhishek Malik <abhishek.malik@intel.com>

examples/c++/lidarlitev3.cxx

@@ -0,0 +1,64 @@
+/*
+ * Author: Saloni Jain <saloni.jain@tcs.com>
+ * Author: Niti Rohilla <niti.rohilla@tcs.com>
+ * Copyright (c) 2014 Intel Corporation.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining
+ * a copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sublicense, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be
+ * included in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
+ * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+ * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+ * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+#include <unistd.h>
+#include <iostream>
+#include <signal.h>
+#include "lidarlitev3.hpp"
+
+volatile int doWork = 0;
+
+void
+sig_handler(int signo)
+{
+    if (signo == SIGINT) {
+        printf("\nCtrl-C received.\n");
+        doWork = 1;
+    }
+}
+
+int
+main(int argc, char **argv)
+{
+
+    // Register signal handler
+    signal(SIGINT, sig_handler);
+
+    //! [Interesting]
+    upm::LIDARLITEV3 *sensor = new upm::LIDARLITEV3(0, ADDR);
+
+    while (!doWork) {
+        std::cout << "Distance = " << sensor->getDistance () << std::endl;
+        usleep (50000);
+    }
+
+    //! [Interesting]
+
+    std::cout << "exiting application" << std::endl;
+
+    delete sensor;
+
+    return 0;
+}