ENH: update List and DynamicList methods (issue #595)

- improve functional compatibility with DynList (remove methods)
  * eg, remove an element from any position in a DynamicList
  * reduce the number of template parameters
  * remove/subset regions of DynamicList

- propagate Swap template specializations for lists, hashtables

- move construct/assignment to various containers.

- add find/found methods for FixedList and UList for a more succinct
  (and clearer?) usage than the equivalent global findIndex() function.

- simplify List_FOR_ALL loops

src/OpenFOAM/containers/HashTables/HashTable/HashTable.C

@@ -93,6 +93,18 @@ Foam::HashTable<T, Key, Hash>::HashTable(const HashTable<T, Key, Hash>& ht)
 }
 
 
+template<class T, class Key, class Hash>
+Foam::HashTable<T, Key, Hash>::HashTable(HashTable<T, Key, Hash>&& ht)
+:
+    HashTableCore(),
+    nElmts_(0),
+    tableSize_(0),
+    table_(nullptr)
+{
+    transfer(ht);
+}
+
+
 template<class T, class Key, class Hash>
 Foam::HashTable<T, Key, Hash>::HashTable
 (
@@ -750,6 +762,15 @@ void Foam::HashTable<T, Key, Hash>::clearStorage()
 }
 
 
+template<class T, class Key, class Hash>
+void Foam::HashTable<T, Key, Hash>::swap(HashTable<T, Key, Hash>& ht)
+{
+    Foam::Swap(table_,     ht.table_);
+    Foam::Swap(tableSize_, ht.tableSize_);
+    Foam::Swap(nElmts_,    ht.nElmts_);
+}
+
+
 template<class T, class Key, class Hash>
 void Foam::HashTable<T, Key, Hash>::transfer(HashTable<T, Key, Hash>& ht)
 {
@@ -908,6 +929,24 @@ void Foam::HashTable<T, Key, Hash>::operator=
 }
 
 
+template<class T, class Key, class Hash>
+void Foam::HashTable<T, Key, Hash>::operator=
+(
+    HashTable<T, Key, Hash>&& rhs
+)
+{
+    // Check for assignment to self
+    if (this == &rhs)
+    {
+        FatalErrorInFunction
+            << "attempted assignment to self"
+            << abort(FatalError);
+    }
+
+    transfer(rhs);
+}
+
+
 template<class T, class Key, class Hash>
 bool Foam::HashTable<T, Key, Hash>::operator==
 (