memory: Hide all copy/assignment ops for class w/heap allocation

Many of the UPM libraries allocate space on the heap but do not
explicitly handle copying and assignment.  This commit uses C++11 delete
to forbit both the copy and assignment operator for these classes.

The C++ examples which used assignment operators to initialize class
instances were also updated since it did not appear necessary in those
cases to use the assignment operator.

Signed-off-by: Noel Eck <noel.eck@intel.com>

src/si1132/si1132.hpp

@@ -83,6 +83,10 @@ class SI1132 : public ILightSensor {
         virtual const char* getModuleName() { return "si1132"; }
 
     private:
+        /* Disable implicit copy and assignment operators */
+        SI1132(const SI1132&) = delete;
+        SI1132 &operator=(const SI1132&) = delete;
+
         mraa::Result reset();
         mraa::Result clearResponseRegister();
         mraa::Result runCommand(uint8_t command);