Feat/ts migration

[ilteoood]

Closes #212
Closes #202

With this PR I aim to migrate everything to ts, including build steps and lint configurations.

[karl-power]

LGTM

[simoneb]

@ilteoood have you tested that this works with your changes? I wouldn't want to merge and release a new version just to realize that it doesn't work. I know that testing a CLI package is not the simplest thing, but just checking if you tried

[ilteoood]

@simoneb I tried the scripts included in the package.json, which involves some examples provided, but nothing more

[simoneb]

@ilteoood can you try using it as a binary, in the same way as it would be used by the end user?

[ilteoood]

@ilteoood can you try using it as a binary, in the same way as it would be used by the end user?

Hi @simoneb, I just tried it by both:

• linking the package with npm link;
• publishing the package on a local instance of verdaccio and running it through npx.

In both the scenario it is working fine. IMO we are ready to merge