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/bmm150/bmm150.hpp

@@ -346,6 +346,10 @@ namespace upm {
         bmm150_context m_bmm150;
 
     private:
+        /* Disable implicit copy and assignment operators */
+        BMM150(const BMM150&) = delete;
+        BMM150 &operator=(const BMM150&) = delete;
+
         // Adding a private function definition for java bindings
 #if defined(SWIGJAVA) || defined(JAVACALLBACK)
         void installISR(BMM150_INTERRUPT_PINS_T intr, int gpio,