Be more compatable with run?

[ChrisJefferson]

It would be nice (for me at least) if debug tried to be a drop-in replacement for run, so I can easily switch between the two.

For example, with run I would normally do:

cargo run --bin myprog -- args

but cargo debug doesn't accept "--bin".

[ryankurte]

hey that would be super neat. i threw this together pretty quickly to solve the basic problem, happy to accept PRs to improve it!

[thargy]

Also cargo run --example ...