Entities cleanup, Primitive concept introduced

js/entity/primitive/LocalizedTextEntity.js

@@ -0,0 +1,22 @@
+import Primitive from "./Primitive"
+
+export default class LocalizedTextEntity extends Primitive {
+
+    /**
+     * 
+     * @param {String} namespace 
+     * @param {String} key 
+     * @param {String} value 
+     */
+    constructor(namespace, key, value) {
+        super()
+        this.namespace = namespace
+        this.key = key
+        this.value = value
+    }
+
+    toString() {
+        "NSLOCTEXT(" + `"${this.namespace}"` + ", " + `"${this.key}"` + ", " + `"${this.value}"` + ")"
+    }
+
+}