Added XiEngineFoam script to redirect users to XiFoam with instructions

bin/XiEngineFoam

@@ -0,0 +1,59 @@
+#!/bin/sh
+#------------------------------------------------------------------------------
+# =========                 |
+# \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
+#  \\    /   O peration     | Website:  https://openfoam.org
+#   \\  /    A nd           | Copyright (C) 2021 OpenFOAM Foundation
+#    \\/     M anipulation  |
+#------------------------------------------------------------------------------
+# License
+#     This file is part of OpenFOAM.
+#
+#     OpenFOAM is free software: you can redistribute it and/or modify it
+#     under the terms of the GNU General Public License as published by
+#     the Free Software Foundation, either version 3 of the License, or
+#     (at your option) any later version.
+#
+#     OpenFOAM is distributed in the hope that it will be useful, but WITHOUT
+#     ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+#     FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+#     for more details.
+#
+#     You should have received a copy of the GNU General Public License
+#     along with OpenFOAM.  If not, see <http://www.gnu.org/licenses/>.
+#
+# Script
+#     XiEngineFoam
+#
+# Description
+#     Script to inform the user that XiEngineFoam has been replaced by the more
+#     general XiFoam solver.
+#
+#------------------------------------------------------------------------------
+
+cat << EOF
+
+The XiEngineFoam solver has solver has been replaced by the more general XiFoam
+solver, which supports engine mesh motion using an appropriate
+fvMeshMover. e.g. layeredEngine
+
+To run a XiEngineFoam case in XiFoam add a mover entry in
+constant/dynamicMeshDict
+e.g. from the tutorials/combustion/XiFoam/RAS/kivaTest case:
+
+mover
+{
+    type            layeredEngine;
+
+    libs            ("libfvMeshMovers.so");
+
+    conRodLength    0.147;
+    bore            0.092;
+    stroke          0.08423;
+    clearance       0.00115;
+    pistonLayers    0;
+}
+
+EOF
+
+#------------------------------------------------------------------------------