add web test runner

webpack.config.js

@@ -0,0 +1,19 @@
+module.exports = {
+  entry: "./src/index.ts",
+  mode: "production",
+  output: {
+    filename: "dist/bundle.js"
+  },
+  node: {
+    fs: "empty"
+  },
+  resolve: {
+    extensions: [".ts", ".js"],
+  },
+  module: {
+    rules: [
+      {test: /\.ts$/, use: {loader: "ts-loader", options: {transpileOnly: true}}}
+    ],
+  },
+
+};