feat: add bundler and devserver hooks

[Julien-R44]

Added assembler hooks that was added in the RC File since this release: https://github.com/adonisjs/application/releases/tag/v8.1.0

Can be used like that :

new DevServer({
  hooks: {
    onDevServerStarted: () => {},
    onSourceFileChanged: () => {},
  }
})

new Bundler({
  hooks: {
    onBuildCompleted: () => {},
    onBuildStarting: () => {},
  }
})