ENH: add dictionary-driven multi-pass stitchMesh facility

- the dictionary-driven variant of stitchMesh allows sequential
  application of 'stitch' operation with requiring intermediate
  writing to disk.

- Without arguments:
  * stitchMesh uses a system/stitchMeshDict or -dict dict

- With arguments:
  * master/slave patches specified on the command-line as in previous
    versions.

tutorials/mesh/stitchMesh/simple-cube1/Allrun

@@ -4,9 +4,11 @@ cd ${0%/*} || exit 1                        # Run from this directory
 
 runApplication ./Allmesh
 
-for dir in x y z
-do
-    runApplication -s dir-$dir stitchMesh -partial outer$dir inner$dir
-done
+# Use stitchMesh with dictionary
+
+# runApplication stitchMesh -intermediate
+runApplication stitchMesh -overwrite
+
+runApplication checkMesh
 
 # -----------------------------------------------------------------------------

tutorials/mesh/stitchMesh/simple-cube1/Allrun-args

@@ -0,0 +1,15 @@
+#!/bin/sh
+cd ${0%/*} || exit 1                        # Run from this directory
+. $WM_PROJECT_DIR/bin/tools/RunFunctions    # Tutorial run functions
+
+runApplication ./Allmesh
+
+# Use stitchMesh with command arguments (no dictionary)
+for dir in x y z
+do
+    runApplication -s dir-$dir stitchMesh -partial outer$dir inner$dir
+done
+
+runApplication checkMesh
+
+# -----------------------------------------------------------------------------

tutorials/mesh/stitchMesh/simple-cube1/system/stitchMeshDict

@@ -0,0 +1,38 @@
+/*--------------------------------*- C++ -*----------------------------------*\
+| =========                 |                                                 |
+| \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox           |
+|  \\    /   O peration     | Version:  plus                                  |
+|   \\  /    A nd           | Web:      www.OpenFOAM.com                      |
+|    \\/     M anipulation  |                                                 |
+\*---------------------------------------------------------------------------*/
+FoamFile
+{
+    version     2.0;
+    format      ascii;
+    class       dictionary;
+    object      stitchMeshDict;
+}
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+outerx
+{
+    match   partial;    // partial | integral | perfect
+    master  outerx;
+    slave   innerx;
+}
+
+outery
+{
+    match   partial;
+    master  outery;
+    slave   innery;
+}
+
+outerz
+{
+    match   partial;
+    master  outerz;
+    slave   innerz;
+}
+
+// ************************************************************************* //