Added body to the database with attributes of each pokemon

Respond to hound comments, then I'll merge in.

With respect to formatting that big hash, I'd do it like this:

```ruby
  creature_attrs = {
    name: creature["name"],
    body: {
      type: data["types"][0]["name"],
      abilities: data["abilities"][0]["name"],
      attack: data["attack"],
      defense: data["defense"],
      special_attack: data["sp_atk"],
      special_defense: data["sp_def"],
      speed: data["speed"]
    }.to_s,
    resource_uri: creature["resource_uri"]
  }
```