Artipie CLI MVP

[g4s8]

Solution for #1 meta proposal.

Let's implement a CLI for Artipie with required commands to manage Artipie resources, such as repositories, users, permissions, storages.

Each resource type initially support these commands (but may support some additional commands too):

• get - to show information about resource or list resources
• update - to create or update resource configuration
• delete - delete resource

Initial resource to be supported:

• repositories - artifact repositories
• users - names, credentials, authentication
• permissions - user permissions for repositories, authorization
• storages - storage configurations, could be used as repository storage aliases

Current scope of work:

• repositories:
  • get Get repository command #3
  • update Artipie CLI MVP #2
  • delete
• users:
  • get
  • update
  • delete
• permissions:
  • get
  • update
  • delete
• storages:
  • get
  • update
  • delete

Artipie API reference: https://github.com/artipie/management-api/blob/master/REST_API.md