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/ppd42ns/ppd42ns.hpp

@@ -75,6 +75,10 @@ namespace upm {
         ppd42ns_dust_data getData();
 
     private:
+        /* Disable implicit copy and assignment operators */
+        PPD42NS(const PPD42NS&) = delete;
+        PPD42NS &operator=(const PPD42NS&) = delete;
+
         ppd42ns_context m_ppd42ns;
     };
 }