Support skipping some features with flag --skip on create-app #961
Description
If you wish to skip some files from being generated or skip some features, you can use --skip flags,
$ grace create-app grace.apps.blog --skip-asset-pipeline --skip-geb --skip-cache --skip-scaffolding --skip-async --skip-events
| Creating a new application
Name: blog
Package: grace.apps
Profile: web
Features: bootstrap, database-migration, fields, gsp, hibernate, jquery
Database: h2
Project root: /Users/rain/Development/github/grace/grace-demos/blog
| Application created by Grace 2023.3.0-SNAPSHOT.