(V1) Implement API key authentication

[baktun14]

• Add schema tables to store keys
  • id - uuid (pk)
  • user_id - user fk
  • api_key - string api key
  • description - string
  • create_at - datetime
  • expires_at - datetime
  • is_active - boolean
  • last_used_at - datetime
• Implement API endpoints to CRUD API keys
  • GET /v1/users/api-keys (list all)
  • GET /v1/users/api-keys/{id} (detail)
  • POST /v1/users/api-keys (create)
  • DELETE /v1/users/api-keys/{id} (delete)
  • PATCH /v1/users/api-keys/{id} (update)

In an another iteration we can add application scopes to the keys.