tutorials: Fixes relating to initialisation

Some tutorials have had Allrun scripts added in order to run setFields,
which was previously omitted. Others have had nonuniform field files in
the 0 directory replaced by uniform files with .orig extensions.

tutorials/multiphase/reactingTwoPhaseEulerFoam/RAS/bubbleColumn/Allrun

@@ -0,0 +1,11 @@
+#!/bin/sh
+cd ${0%/*} || exit 1    # Run from this directory
+
+# Source tutorial run functions
+. $WM_PROJECT_DIR/bin/tools/RunFunctions
+
+runApplication blockMesh
+runApplication setFields
+runApplication $(getApplication)
+
+#------------------------------------------------------------------------------