incorporate features pillar

salt/common/tools/sbin/so-common

@@ -301,6 +301,17 @@ lookup_role() {
 	echo ${pieces[1]}
 }
 
+is_feature_enabled() {
+	feature=$1
+	enabled=$(lookup_salt_value features)
+	for cur in $enabled; do
+		if [[ "$feature" == "$cur" ]]; then
+			return 0
+		fi
+	done
+	return 1
+}
+
 require_manager() {
 	if is_manager_node; then
 		echo "This is a manager, so we can proceed."