Provide NPM Initializers

[FlorianRappl]

Description

Right now (a global installation of) the Piral CLI with parameters passed as CLI arguments needs to be used for scaffolding a new pilet or a new Piral instance. Both cases should be simplified to provide a really simple way of scaffolding a pilet or Piral instance.

Ideally, NPM itself can be used for this process:

npm init pilet

would create a new pilet, while

npm init piral-instance

would create a new Piral instance.

In a bit older NPM versions npx could be used:

npx create-pilet
npx create-piral-instance

All of these commands would not work with CLI parameters, but with command prompts. As such they provide an easy and interactive way of scaffolding.

Background

This idea has been discussed with a bit of background in #61. In particular, the current way of requiring a global installation is not super user friendly. The Piral CLI continues to work locally, however, for scaffolding this is (due to chicken-egg...) not working out.

Discussion

Essentially, these two new commands represent two initializer packages, that just wrap the Piral CLI with a questionnaire run as command line prompts.

[FlorianRappl]

Landed in develop.