Add device

[chaoran-chen]

Since "everything" is a wiki page, adding a device means inserting a wiki page of the type "device".

The API should look as follows:

Request:

POST /wiki

{
  type: "device",
  title: string,
  description: string,
  references: string (optional)
}

Response:

• Status code 200: ID of the new device/wiki page

This endpoint should only be available for registered users.

A database table wiki_page should be created which has the columns "id", "type", "title", "description" and "references".