wip: Initial import of Starship

[Michael-John Turner <mj%mjturner.net@localhost>]

Hi all,

I've imported an initial package for Starship[1], the cross-shell prompt
enhancer, into WIP. It can be found in starship/.

As this is my first Rust package, feedback is most welcome.

[1] https://starship.rs/

Cheers, MJ
--
Michael-John Turner * mj%mjturner.net@localhost * http://mjturner.net/