Automate help message using variants and options arrays. Fix wrong arithmetic used to set the mask used to check options

ci-scripts/destroyAllRunningVM.sh

@@ -30,19 +30,7 @@ function destroy_usage {
     echo "------"
     echo "    oai-ci-vm-tool destroy [OPTIONS]"
     echo ""
-    echo "Mandatory Options:"
-    echo "--------"
-    echo "    --job-name #### OR -jn ####"
-    echo "    Specify the name of the Jenkins job."
-    echo ""
-    echo "    --build-id #### OR -id ####"
-    echo "    Specify the build ID of the Jenkins job."
-    echo ""
-    echo "Options:"
-    echo "--------"
-    echo "    --help OR -h"
-    echo "    Print this help message."
-    echo ""
+    command_options_usage
 }
 
 function destroy_vm {