Use GitHub releases for tags and sync with NPM

[almereyda]

While a v0.7.3 tag exists, NPM knows only about v0.7.2, while this repository claims v0.6.1 as the latest release.

It could be nice to make more use of the GitHub releases feature, when a new tag is pushed, and have some CI in place to automatically build an artifact for NPM, too.

Then using the CLI can be as easy as npm install -g passbolt_cli, in case that is wanted.