add other flowcontrol ops. Update tests

src/core/operations/Label.mjs

@@ -0,0 +1,50 @@
+/**
+ * @author n1474335 [n1474335@gmail.com]
+ * @copyright Crown Copyright 2016
+ * @license Apache-2.0
+ */
+
+import Operation from "../Operation";
+
+/**
+ * Label operation
+ */
+class Label extends Operation {
+
+    /**
+     * Label constructor
+     */
+    constructor() {
+        super();
+
+        this.name = "Label";
+        this.flowControl = true;
+        this.module = "Default";
+        this.description = "Provides a location for conditional and fixed jumps to redirect execution to.";
+        this.inputType = "string";
+        this.outputType = "string";
+        this.args = [
+            {
+                "name": "Name",
+                "type": "shortString",
+                "value": ""
+            }
+        ];
+    }
+
+    /**
+     * Label operation. For use with Jump and Conditional Jump
+     *
+     * @param {Object} state - The current state of the recipe.
+     * @param {number} state.progress - The current position in the recipe.
+     * @param {Dish} state.dish - The Dish being operated on.
+     * @param {Operation[]} state.opList - The list of operations in the recipe.
+     * @returns {Object} The updated state of the recipe.
+     */
+    run(state) {
+        return state;
+    }
+
+}
+
+export default Label;