Types are missing JSDocs

[scottc]

The api methods have docs, but the types themselves do not.

Actual:
Response types are missing JSDocs

export type User {
    id: number;
    username: string;
}

Expected:
JSDocs containing the definition descriptions.

/** */
export type User {
    /** {integer} The user ID. */
    id: number;
    /** The user name. */
    username: string;
}

Spec:
https://swagger.io/docs/specification/2-0/describing-responses/

definitions:
  User:
    type: object
    properties:
      id:
        type: integer
        description: The user ID.
      username:
        type: string
        description: The user name.

[mtennoe]

Yo! Yep, seems like we are missing this. Shouldnt be too hard to add either, so should be an easy win.
Might also be interesting to make it togglable so consumers can disable comments if desired.