add initial marp implementation with sample content and build configuration

node_modules/speech-rule-engine/js/walker/dummy_walker.js

@@ -0,0 +1,40 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.DummyWalker = void 0;
+const abstract_walker_js_1 = require("./abstract_walker.js");
+class DummyWalker extends abstract_walker_js_1.AbstractWalker {
+    up() {
+        return null;
+    }
+    down() {
+        return null;
+    }
+    left() {
+        return null;
+    }
+    right() {
+        return null;
+    }
+    repeat() {
+        return null;
+    }
+    depth() {
+        return null;
+    }
+    home() {
+        return null;
+    }
+    getDepth() {
+        return 0;
+    }
+    initLevels() {
+        return null;
+    }
+    combineContentChildren(_type, _role, _content, _children) {
+        return [];
+    }
+    findFocusOnLevel(_id) {
+        return null;
+    }
+}
+exports.DummyWalker = DummyWalker;