Add string based constructors for UPM sensors

Signed-off-by: Mihai Stefanescu <mihai.stefanescu@rinftech.com>
Signed-off-by: Stefan Andritoiu <stefan.andritoiu@gmail.com>
Signed-off-by: Mihai Tudor Panu <mihai.tudor.panu@intel.com>

src/initio/initioSampleModule.cpp

@@ -0,0 +1,18 @@
+#include <iostream>
+#include <string>
+#include <stdexcept>
+
+#include "initioSampleModule.hpp"
+
+using namespace upm;
+using namespace std;
+
+initioSampleModule::initioSampleModule(std::string initStr)  : mraa::MraaIo(initStr)
+{
+    // Do some processing here
+    //std::cout << "111 " << leftoverStr << std::endl;
+}
+
+initioSampleModule::~initioSampleModule()
+{
+}