Feature: Purge Command for revoked and/or expired tokens and auth codes

[MFlor]

What is this feature request for

This adds an artisan command, which allows for users to purge revoked and/or expired tokens and auth codes.

Why is this feature request created?

With a single command to purge revoked and/or expired tokens, users can quickly schedule this to happen on a regular basis or easily purge them once in a while manually.

Usage:

One command is added with two options:

php artisan passport:purge` # This will purge both revoked and expired tokens and auth codes
php artisan passport:purge --revoked` # This will only purge revoked tokens and auth codes
php artisan passport:purge --expired` # This will only purge expired tokens and auth codes
php artisan passport:purge --revoked --expired` # This will purge both expired tokens and auth codes