Rename to yubikey.rs (#267)

We now have publishing rights to the `yubikey` crate.

This commit renames the project to yubikey.rs

Co-authored-by: Tony Arcieri <bascule@gmail.com>

cli/src/commands/readers.rs

@@ -7,7 +7,7 @@ use std::{
     process::exit,
 };
 use termcolor::{ColorSpec, StandardStreamLock, WriteColor};
-use yubikey_piv::{Readers, Serial};
+use yubikey::{Readers, Serial};
 
 /// The `readers` subcommand
 #[derive(Debug, Options)]

cli/src/commands/status.rs

@@ -4,7 +4,7 @@ use crate::terminal::STDOUT;
 use gumdrop::Options;
 use std::io::{self, Write};
 use termcolor::{ColorSpec, StandardStreamLock, WriteColor};
-use yubikey_piv::{key::*, YubiKey};
+use yubikey::{key::*, YubiKey};
 
 use crate::print_cert_info;