[feature req] Add command to drop and (re)create migrations

[b1ek]

I ask to add a command like in Laravel: php artisan migrate:refresh
To do this, you'd have to run sequelize db:migrate:undo:all, then sequelize db:migrate, which is not very convenient and could be shortened to sequelize db:migrate:refresh

I am probably going to open a pull request about it myself when i have time for this, but it would be nice if someone else could do it