foamRunTutorials: Rationalized support for the "-test" option

RunFunctions: Added "isTest()" argument parsing function
tutorials: Updated Allrun scripts to propagate the "-test" option
tutorials: Removed the lower Alltest scripts and updated the Allrun to
    use the "isTest()" function to handle test-specific operation

bin/tools/RunFunctions

@@ -28,6 +28,17 @@
 #     Miscellaneous functions for running tutorial cases
 #------------------------------------------------------------------------------
 
+isTest()
+{
+    for i in "$@"; do
+        if [ "$i" = "-test" ]
+        then
+            return 0
+        fi
+    done
+    return 1
+}
+
 getNumberOfProcessors()
 {
     expandDictionary system/decomposeParDict \