Create the CLI/Plugin project

[gioragutt]

Requirements

CLI

nx-pwm should be a CLI so that it can be used the following way:

$ yarn add -D nx-pwm
$ yarn pwm check-versions
$ yarn pwm depcheck

Plugin

nx-pwm should also be a plugin so that it can be used the following way:

$ yarn add -D nx-pwm
$ yarn nx g nx-pwm:install

Implementation

Project generation

As far as I'm concerned, nx-pwm can be generated with @nrwl/nx-plugin.
This does limit the ability to extract logic to nx-based libraries.
For now, this is acceptable. If I want to extract certain behaviors to libraries, I might as well make nx-pwm modular and publish the behaviors.

CLI Impl

TBD