ENH: cleanup ensightParts to use updated infrastructure (issue #241).

- Use ensightCase for case writing.
  Rebase ensightPartCells/ensightPartFaces on
  ensightCells/ensightFaces routines.

- Greatly reduces code duplication potential source of errors.

applications/utilities/postProcessing/dataConversion/foamToEnsightParts/checkMeshMoving.H

@@ -0,0 +1,48 @@
+// check for "points" in all of the result directories
+// - could restrict to the selected times
+
+bool meshMoving = false;
+
+if (timeDirs.size() > 1 && Pstream::master())
+{
+    // We already loaded a mesh (usually from constant).
+    // See if any other "polyMesh/points" files exist too.
+
+    const fileName& baseDir = mesh.time().path();
+
+    Info<< "Search for moving mesh ... " << flush;
+    forAll(timeDirs, timeI)
+    {
+        meshMoving =
+        (
+            isDir(baseDir/timeDirs[timeI].name()/polyMesh::meshSubDir)
+         && IOobject
+            (
+                "points",
+                timeDirs[timeI].name(),
+                polyMesh::meshSubDir,
+                mesh,
+                IOobject::NO_READ,
+                IOobject::NO_WRITE,
+                false  // no register
+            ).typeHeaderOk<pointIOField>(true)
+        );
+
+        if (meshMoving)
+        {
+            break;
+        }
+    }
+
+    if (meshMoving)
+    {
+        Info<< "found." << nl
+            << "    Writing meshes for every timestep." << endl;
+    }
+    else
+    {
+        Info<< "none detected." << endl;
+    }
+}
+
+reduce(meshMoving, orOp<bool>());