Creates new user account
Requires User object and creates account
or returns an error if account already exists
---
tags:
  - Account
parameters:
  - in: body
    name: body
    required: true
    schema:
        type: object
        $ref: '#/definitions/User'
security: []
responses:
  201:
    description: Successful creation
  422:
    description: Account already exists
    schema:
      $ref: '#/definitions/Error'