[Improvement Request] Allow DE creation to be at shared/enterprise level

[JoeyNovais]

Hey there !

Thanks for this awesome tool ! I cannot say enough how much I was frustrated by the limitations of SSJS and I found the holy grail with your repo 😃

I work for a big company that have a lot of BUs (44) and I wonderred if that could be a thing to make the installation process ask you if you want the DEs to be installed in the shared folder so that we can log everything at the same place and not have to do the install process on every BU's