Implement /api/v1/imagens/:id_imagem(\d+)/classificacoes

[rgaiacs]

  ● GET /api/v1/imagens/:id_imagem(\d+)/classificacoes (id_imagem = 1) › anonymous
    expect(received).toBe(expected) // Object.is equality
    Expected: 200
    Received: 501
      1733 |                     .then(
      1734 |                         response => {
    > 1735 |                             expect(response.statusCode).toBe(HttpStatus.OK);
           |                                                         ^
      1736 |                             expect(
      1737 |                                 response.body
      1738 |                             ).toMatchObject(
      at src/__tests__/image.js:1735:57
          at runMicrotasks (<anonymous>)