mapFields: Reinstated mapFields from OpenFOAM-2.2.x and renamed the current mapFields -> mapFieldsPar

This required the addition of the meshToMesh class in the sampling
library from OpenFOAM-2.2.x which is now named meshToMesh0.

applications/utilities/preProcessing/mapFields/createTimes.H

@@ -1,11 +1,15 @@
     Info<< "\nCreate databases as time" << endl;
 
-    HashTable<string> srcOptions(args.options());
-    srcOptions.erase("case");
-    srcOptions.insert("case", fileName(rootDirSource/caseDirSource));
+    Time runTimeSource
+    (
+        Time::controlDictName,
+        rootDirSource,
+        caseDirSource
+    );
 
-    argList argsSrc(args, srcOptions, false, false, false);
-
-    Time runTimeSource(Time::controlDictName, argsSrc);
-
-    Time runTimeTarget(Time::controlDictName, args);
+    Time runTimeTarget
+    (
+        Time::controlDictName,
+        rootDirTarget,
+        caseDirTarget
+    );