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/bmpx8x/bmpx8x.hpp

@@ -241,6 +241,8 @@ namespace upm {
         void writeReg(uint8_t reg, uint8_t val);
 
     private:
+        /* Disable implicit copy and assignment operators */
+        BMPX8X(const BMPX8X&) = delete;
+        BMPX8X &operator=(const BMPX8X&) = delete;
     };
-
 }