add initial marp implementation with sample content and build configuration

node_modules/speech-rule-engine/mjs/highlighter/mml_css_highlighter.js

@@ -0,0 +1,13 @@
+import { CssHighlighter } from './css_highlighter.js';
+export class MmlCssHighlighter extends CssHighlighter {
+    constructor() {
+        super();
+        this.mactionName = 'maction';
+    }
+    getMactionNodes(node) {
+        return Array.from(node.getElementsByTagName(this.mactionName));
+    }
+    isMactionNode(node) {
+        return node.tagName === this.mactionName;
+    }
+}