Initial implementation of frontend plugins

Uses webpack 5 module federation to dynamically load code based on a JS file URL.

webpack.dev.config.js

@@ -0,0 +1,28 @@
+const { createConfig } = require('@edx/frontend-build');
+// eslint-disable-next-line import/no-extraneous-dependencies
+const { ModuleFederationPlugin } = require('webpack').container;
+
+module.exports = createConfig('webpack-dev', {
+  plugins: [
+    new ModuleFederationPlugin({
+      name: 'learning',
+      shared: {
+        react: {
+          import: 'react', // the "react" package will be used a provided and fallback module
+          shareKey: 'react', // under this name the shared module will be placed in the share scope
+          shareScope: 'default', // share scope with this name will be used
+          singleton: true, // only a single version of the shared module is allowed
+          eager: true,
+        },
+        'react-dom': {
+          singleton: true, // only a single version of the shared module is allowed
+          eager: true,
+        },
+        '@edx/frontend-platform': {
+          singleton: true,
+          eager: true,
+        },
+      },
+    }),
+  ],
+});