[ORM][Sequelize] include 모델에 order by 하기

참고한 내용

https://github.com/sequelize/sequelize/issues/7510

Model.findAll({
  include: [{
    model: Nested,
    attributes: []
  }],
  order: [[Nested, 'name', 'asc']]
})

A1.findone({
where: { id: id },
include: [ { model: B1, as: 'b1' } ],
order: [ [ {model: B1, as: 'b1'}, 'createAt', 'DESC' ] ]

A1.findone({
where: { id: id },
include: [ { model: B1, as: 'b1' }
           { model: C1, as: 'c1' }
         ],
order: [ [ {model: B1, as: 'b1'}, 'createAt', 'DESC' ],
         [ {model: C1, as: 'c1'}, 'name', 'ASC' ], 
       ]