[v2] Localize assets from CDNs about assets

[tabacitu]

We should probably also provide a way to localize ALL assets. Packages could provide a way to tell AssetManager directories where they hold blade files that use assets from CDNs. Then when you run php artisan assets:localize it would have a list of directories, go through all the blade files there, parse them to get URLs and localize everything in one command.

[tabacitu]

Brain dump with @promatik

@basset('https://cdnjs.cloudflare.com/ajax/libs/tinymce/6.2.0/tinymce.min.js')

/public/basset/cdnjs.cloudflare.com/ajax/libs/tinymce/6.2.0/tinymce.min.js

---

php artisan basset:install
- add to .gitignore
- add to composer.json

php artisan basset:internalize

[tabacitu]

Would fix Laravel-Backpack/community-forum#116 (comment)

[promatik]

Can't wait to do it 🙌

[promatik]

This is fixed by #14