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/bma220/bma220.hpp

@@ -813,6 +813,10 @@ namespace upm {
     float m_accelScale;
 
   private:
+    /* Disable implicit copy and assignment operators */
+    BMA220(const BMA220&) = delete;
+    BMA220 &operator=(const BMA220&) = delete;
+
     /**
      * update the accelerometer values
      */