feat: Order of the columns

[#1237](https://github.com/ogham/exa/issues/1237) from [exa](https://github.com/ogham/exa)
>A resource to define the order of the columns. If I want for example:
>
>User, Group, Octal, Permission, Date Modified, Size, Icon, Name
>
>would be beyond the perfection, it is a lot better than lsd and other already

I am re-posting this here because I think that is a good feature request.

I am going to check it out and see what it would take to implement, but I have a feeling it will be much more complicated than it sounds.