add experimental module federation support

Created by: hasanayan

I re-enabled @raix's code to enable module-federation and added the necessary changes to the webpack config. Tested the changes by making the same modifications using craco in apps that both run as standalone or remote apps and it works fine.

With this PR, to enable Module Federation, you'll need a file named .modulefederationrc.js which exports ModuleFederationPlugin parameters as json.

const deps = require("./package.json").dependencies;

module.exports = {
  name: "my_app",
  exposes: {
    "./App": "./src/App",
  },
  filename: "remoteEntry.js",
  shared: {
    ///...
  }
}