ENH: change wordRes to be a List of wordRe instead of a wrapper (issue #259)

- this permits direct storage of a list with additional matcher
  capabilities

- provide wordRes::matcher class for similar behaviour as previously

src/sampling/sampledSet/patchSeed/patchSeedSet.H

@@ -103,7 +103,7 @@ public:
 
 
     //- Destructor
-    virtual ~patchSeedSet();
+    virtual ~patchSeedSet() = default;
 };