bh1749: Add examples for all languages

* Examples for C/C++/Python/Java/JavaScript
* Add Java example to CMakeLists

Signed-off-by: Assam Boudjelthia <assam.boudjelthia@fi.rohmeurope.com>

examples/c++/bh1749.cxx

@@ -0,0 +1,69 @@
+/*
+* The MIT License (MIT)
+*
+* Author: Assam Boudjelthia
+* Copyright (c) 2018 Rohm Semiconductor.
+*
+* 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 <iostream>
+#include <unistd.h>
+#include <stdexcept>
+#include <signal.h>
+#include <vector>
+#include "bh1749.hpp"
+#include "upm_utilities.h"
+
+bool isStopped;
+upm::BH1749 dev;
+
+void signal_int_handler(int signo)
+{
+    if (signo == SIGINT)
+        isStopped = true;
+}
+
+void PrintData(void *args)
+{
+	std::vector<uint16_t> result = dev.GetMeasurements();
+	std::cout << "R: " << result.at(0) <<
+				", G: " << result.at(1)  <<
+				", B: " << result.at(2)  <<
+				", IR: " << result.at(3)  <<
+				", G2: " << result.at(4)  << std::endl;
+	dev.ResetInterrupt();
+}
+
+int main(int argc, char **argv)
+{
+	signal(SIGINT, signal_int_handler);
+	dev.SoftReset();
+	dev.SensorInit(INT_JUDGE_1, MEAS_240MS, RGB_GAIN_1X, IR_GAIN_1X, RED);
+	dev.SetThresholdHigh(511);
+	std::cout << "Installing ISR" << std::endl;
+	dev.InstallISR(MRAA_GPIO_EDGE_FALLING, 33, &PrintData, NULL);
+	dev.EnableInterrupt();
+	dev.Enable();
+
+	while(!isStopped) {
+		upm_delay_ms(1000);
+	}
+
+	return 0;
+}