Performance optimisation for directors for classes passed by value

The directorin typemaps in the director methods now use std::move on the
input parameter when copying the object from the stack to the heap prior
to the callback into the target language, thereby taking advantage of
move semantics if available.

Examples/test-suite/java/director_pass_by_value_runme.java

@@ -32,6 +32,8 @@ public class director_pass_by_value_runme {
           break;
       };
     }
+    if (director_pass_by_value.has_cplusplus11())
+      Counter.check_counts(1, 0, 0, 1, 0, 1); // check move constructor called and just one destructor
     // bug was the passByVal 'global' object was destroyed after the call to virtualMethod had finished.
     int ret = director_pass_by_value_runme.passByVal.getVal();
     if (ret != 0x12345678)