Progress bar for base scan progress

[mattcorbin]

I added in a progress bar for the base Scanner.run(). I had to reorganize the println!("Open {}", socket.to_string().purple()); to be after the scan finishes, as outputting that progress in addition to the bar caused the bar to keep getting pushed down and recreated. There may be a more sophisticated way to handle this as I'm not super familiar with either RustScan and the indicatif crate, so I wanted to post this up to get some preliminary feedback.

fixes #88

[bernardoamc]

Hey @mattcorbin, thanks for the contribution! This library has a heavy set of dependencies, do you know if the rust-world has any lightweight alternatives? :)

[mattcorbin]

@bernardoamc That was actually the crate linked in #88 so I just went with that one to start with. It looks like pbr is the main alternative, and looks to me to be a little bit lighter. I can try to swap it around to use pbr, as the other options I've found are either very beta or abandoned.

[mattcorbin]

@bernardoamc I swapped out indicatif for pbr, the code structure is identical and the actual progress bar itself seems quite a bit nicer IMO. Let me know what you think.

[bernardoamc]

This is awesome, thanks @mattcorbin. Could you rebase this with master? This is conflicting with my latest changes. 🙇

[bernardoamc]

@bee-san do you want to run this PR locally? 😄

[bee-san]

Hey! Thanks so much for your work <3 Unfortunately we think a progress bar would be unmaintainable in the future as we need different types of scans / scripts etc.

Thank you SO much for contributing though! You will get credit on the README for writing code (even if it wasn't merged) :D

@all-contributors add @mattcorbin for code

[allcontributors]

@bee-san

I've put up a pull request to add @mattcorbin! 🎉