added xfer<...> transfer() method to various containers

- this should provide a slightly more naturally means to using transfer
  constructors, for example
          labelList list2(list1.transfer());
      vs. labelList list2(xferMove(list1));

- returns a plain list where appropriate (eg, DynamicList, SortableList)
  for example
          labelList list2(dynList1.transfer());
      vs. labelList list2(xferMoveTo<labelList>(dynList1));

applications/test/DynamicList/DynamicListTest.C

@@ -145,6 +145,14 @@ int main(int argc, char *argv[])
     Info<< "<dlC>" << dlC << "</dlC>" << nl << "sizes: "
         << " " << dlC.size() << "/" << dlC.capacity() << endl;
 
+    List<label> lstB(dlC.transfer());
+
+    Info<< "Transferred to normal list via the transfer() method" << endl;
+    Info<< "<lstB>" << lstB << "</lstB>" << nl << "sizes: "
+        << " " << lstB.size() << endl;
+    Info<< "<dlC>" << dlC << "</dlC>" << nl << "sizes: "
+        << " " << dlC.size() << "/" << dlC.capacity() << endl;
+
     return 0;
 }
 

applications/test/List/ListTest.C

@@ -23,7 +23,7 @@ License
     Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
 
 Application
-    
+
 Description
 
 \*---------------------------------------------------------------------------*/
@@ -54,6 +54,11 @@ int main(int argc, char *argv[])
     list2.setSize(10, vector(1, 2, 3));
     Info<< list2 << endl;
 
+    List<vector> list3(list2.transfer());
+    Info<< "Transferred via the transfer() method" << endl;
+    Info<< list2 << endl;
+    Info<< list3 << endl;
+
     return 0;
 }
 

applications/test/PtrList/PtrListTest.C

@@ -104,6 +104,13 @@ int main(int argc, char *argv[])
 
     Info<<"list1: " << list1 << endl;
 
+    PtrList<Scalar> list3(list1.transfer());
+    Info<< "Transferred via the transfer() method" << endl;
+
+    Info<<"list1: " << list1 << endl;
+    Info<<"list2: " << list2 << endl;
+    Info<<"list3: " << list3 << endl;
+
     Info<< nl << "Done." << endl;
     return 0;
 }