Project initializer

[demenech]

Spring has an interesting UI for users to bootstrap their Spring projects, take a look at: https://start.spring.io/

Since we are taking a start from an example approach, at some point we could want to allow users to do some initial setup on the example before using it and perhaps it would be cool to have something like an initializer for PortalJS.

It could generate the files for download as Spring Initializr does, or it could generate the commands that the users have to run

We could allow the setup of the following:

• Which example
• Metadata stuff like the title and logo (which would be used on SEO stuff)
• DMS or datasets list

Also, show instructions on how to plug that into a GitHub repo.