Add bit_set to rust

[ArikDavidov]

Please complete the following information about the package:

• Name: Add bit_set to rust
• Language Name: rust
• Website: https://docs.rs/bit-set/0.5.0/bit_set/struct.BitSet.html

Following are optional, but will help us consider adding:

• Why is this useful?
  "Validate Sudoku with size NxN" kata
• Example Code:

use bit_set::BitSet;

fn main() {
    let mut set = BitSet::with_capacity(64);
    set.insert(42);
    println!("{:?}", set)
}

https://play.rust-lang.org/?version=stable&mode=debug&edition=2018&gist=0fe557ff4e7f998f25235fa86af4a4bb

👍 reactions might help.

[kazk]

Deployed. Make sure to select Rust 1.44 to use it.