Summary:
This commit adds the ability to add and remove accounts from a list.
The list models has also been updated to change the way lists are
displayed on screen.
Changes:
- Added a subcommand to add accounts to a list.
- Added a subcommand to remove accounts from a list.
- Added a custom error for unknown subcommands.
- Added a custom error when no account IDs are specified when
expected.
Add Enbas code. So far Enbas can:
- Allow the user to register the application and log into GTS on their
behalf. The scope is limited to read for now.
- Show instance details.
- Show local and remote accounts.