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/Cargo.toml

@@ -8,7 +8,7 @@ stored on YubiKey devices.
 authors    = ["Tony Arcieri <tony@iqlusion.io>"]
 edition    = "2018"
 license    = "BSD-2-Clause"
-repository = "https://github.com/iqlusioninc/yubikey-piv.rs"
+repository = "https://github.com/iqlusioninc/yubikey.rs"
 readme     = "README.md"
 categories = ["command-line-utilities", "cryptography", "hardware-support"]
 keywords   = ["ecdsa", "rsa", "piv", "pcsc", "yubikey"]
@@ -22,4 +22,4 @@ sha2 = "0.9"
 subtle-encoding = "0.5"
 termcolor = "1"
 x509-parser = "0.9"
-yubikey-piv = { version = "0.3", path = ".." }
+yubikey = { version = "=0.4.0-pre", path = ".." }