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/lsm303agr/lsm303agr.hpp

@@ -369,6 +369,10 @@ namespace upm {
         void writeReg(uint8_t reg, uint8_t val);
 
     private:
+        /* Disable implicit copy and assignment operators */
+        LSM303AGR(const LSM303AGR&) = delete;
+        LSM303AGR &operator=(const LSM303AGR&) = delete;
+
         // Adding a private function definition for java bindings
 #if defined(SWIGJAVA) || defined(JAVACALLBACK)
         void installISR(LSM303AGR_INTERRUPT_PINS_T intr, int gpio,