(webpack) adding webpack for dependencies bundling, .gitignore and .npmignore

webpack.config.js

@@ -0,0 +1,16 @@
+const path = require("path")
+
+const EsmWebpackPlugin = require("@purtuga/esm-webpack-plugin")
+
+let config = {
+  entry: "./client/common-client-plugin.js",
+  output: {
+    path: path.resolve(__dirname, "./dist"),
+    filename: "./common-client-plugin.js",
+    library: "script",
+    libraryTarget: "var"
+  },
+  plugins: [new EsmWebpackPlugin()]
+}
+
+module.exports = config