Invent a better framework to develop templates

[Ledoux]

This is for now a big weakness of the framework:

As template (specially frontend templates) are juste static files that need some other templates in order to be tested in a full application state. Annoying workflow for now is either:

• create a full app, and then extract from the app the files that are consistent for doing themself a template package.
• or create a project with the dev template already defined, go to the node_modules, rm -rf <test_template>, symlink the one you have locally, do some changes in this node_modules symlinked folder, and trigger manually a tpt dump/tpt configure/tpt replace, anytime you made a change to see the effect on the app.

So we cannot directly go the repo of the dev template, change code and see an automatic livereload of the changed in a testing app.

At some point it would be cool, to have a tpt test CLI that is able to embed the template into a testing app, that also watches the file changes and so trigger the dump, configure, and replace sub tasks in the tested app.