Manage runner tokens

## Usage

`circleci runner token <command> [flags]`

## General Commands

| Command  | Description                         |
| -------- | ----------------------------------- |
| `create` | Create a token for a resource class |
| `list`   | List tokens for a resource class    |

## Targeted Commands

| Command  | Description           |
| -------- | --------------------- |
| `delete` | Delete a runner token |

## Flags

Global flags: `-c, --config`, `--debug`, `--no-color`, `-q, --quiet` — see `circleci --help`.

## Details

Manage runner authentication tokens.

Tokens are used by runner agents to authenticate with CircleCI.
Each token is associated with a specific resource class.

Token values are only shown once at creation time and cannot be retrieved afterwards.

