XiFoam: Added mesh-motion to replace XiEngineFoam

With the addition of mesh-motion to XiFoam and the new engine fvMeshMover the
XiEngineFoam kivaTest simple IC engine example now runs in XiFoam and
XiEngineFoam has been removed.  This simplifies maintenance provides greater
extensibility.

src/OpenFOAM/db/functionObjects/functionObjectList/postProcess.H

@@ -38,10 +38,6 @@ Description
 
 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
-#ifndef CREATE_TIME
-    #define CREATE_TIME createTime.H
-#endif
-
 #ifndef CREATE_MESH
     #define CREATE_MESH createMesh.H
 #endif
@@ -84,7 +80,7 @@ if (argList::postProcess(argc, argv))
         return 0;
     }
 
-    #include INCLUDE_FILE(CREATE_TIME)
+    #include "createTime.H"
     Foam::instantList timeDirs = Foam::timeSelector::select0(runTime, args);
     #include INCLUDE_FILE(CREATE_MESH)