add initial marp implementation with sample content and build configuration

node_modules/mathjax-full/ts/input/asciimath/mathjax2/input/AsciiMath.d.ts

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+export var LegacyAsciiMath: any;

node_modules/mathjax-full/ts/input/asciimath/mathjax2/input/AsciiMath.js

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+MathJax = Object.assign(global.MathJax || {}, require("../legacy/MathJax.js").MathJax);
+
+//
+//  Load component-based configuration, if any
+//
+if (MathJax.config && MathJax.config.asciimath) {
+  MathJax.Hub.Config({AsciiMath: MathJax.config.asciimath});
+}
+
+MathJax.Ajax.Preloading(
+  "[MathJax]/jax/input/AsciiMath/config.js",
+  "[MathJax]/jax/input/AsciiMath/jax.js",
+  "[MathJax]/jax/element/mml/jax.js"
+);
+
+require("../legacy/jax/element/mml/jax.js");
+require("../legacy/jax/input/AsciiMath/config.js");
+require("../legacy/jax/input/AsciiMath/jax.js");
+
+require("../legacy/jax/element/MmlNode.js");
+
+var MmlFactory = require("../../../../core/MmlTree/MmlFactory.js").MmlFactory;
+var factory = new MmlFactory();
+
+exports.LegacyAsciiMath = {
+  Compile: function (am,display) {
+    var script = {
+      type: "math/asciimath",
+      innerText: am,
+      MathJax: {}
+    };
+    var node = MathJax.InputJax.AsciiMath.Translate(script).root.toMmlNode(factory);
+    node.setInheritedAttributes({}, display, 0, false);
+    return node;
+  },
+  Translate: function (am,display) {
+    return this.Compile(am,display);
+  }
+};