[new project] Composable generator to generate project styling

[SBoudrias]

What?

Almost all of our main generators create styling configuration for the user. By styling configuration, I mean CSS files (with or without preprocessor), frameworks and build system.

Now that we added composability feature, it is time to create a single generator that anyone can reuse when creating a web application generator.

Features

Pick any features you want and have time working on. Really go as you feel and we can assure you the community will be supportive and help define future features based on its needs.

• Preprocessor support (SCSS, LESS, Stylus, etc?)
• Framework support (fetch and setup frameworks like Bootstrap, Inuit.css)
• CSS linting
• Build system (compile preprocessor, minify file, etc for each flavor)
• Provide ways to define the folder where to write files

This generator should be very focused and not generate any unnecessary files (e.g. no .editorconfig, etc)

Prior art

You can check any official generators (like generator-webapp) for inspiration on the current config for styling.

Make sure you've read the composability documentation.