Add a Phar with dependencies

[olivernybroe]

I think drift could benefit from a phar with dependencies, as that would remove all conflicts caused by the dependencies.

[owenvoke]

I definitely agree, and I've been thinking about this while on holiday. Shouldn't be too hard at all using Box. :+1: I'm happy to implement this when I'm back in about a week's time if no one else has. 👌🏻

[olivernybroe]

Awesome! I think we should do like rector does and have another repository called drift-prefixed. This way people can require the phar via composer