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/adafruitms1438/adafruitms1438.hpp

@@ -208,6 +208,10 @@ namespace upm {
     void stepperSteps(STEPMOTORS_T motor, unsigned int steps);
 
   private:
+    /* Disable implicit copy and assignment operators */
+    AdafruitMS1438(const AdafruitMS1438&) = delete;
+    AdafruitMS1438 &operator=(const AdafruitMS1438&) = delete;
+
     // SWIG will generate a warning for these 'nested structs'; however,
     // it can be ignored as these structs are never exposed.