tutorials: Added the new Allmesh scripts

tutorials/heatTransfer/buoyantSimpleFoam/externalCoupledCavity/Allmesh

@@ -0,0 +1,10 @@
+#!/bin/sh
+cd ${0%/*} || exit 1    # Run from this directory
+
+# Source tutorial run functions
+. $WM_PROJECT_DIR/bin/tools/RunFunctions
+
+runApplication blockMesh
+runApplication createExternalCoupledPatchGeometry T
+
+#------------------------------------------------------------------------------