added make_credential_full

improved error messages
fixed cbor issues
added hmac example

Cargo.toml

@@ -1,7 +1,7 @@
 [package]
 name = "ctap_hmac"
 description = "A Rust implementation of the FIDO2 CTAP protocol, including the HMAC extension"
-version = "0.1.1"
+version = "0.2.1"
 license = "Apache-2.0/MIT"
 homepage = "https://github.com/ArdaXi/ctap/pull/2"
 repository = "https://github.com/shimunn/ctap"
@@ -19,3 +19,5 @@ cbor-codec = "0.7"
 ring = "0.13"
 untrusted = "0.6"
 rust-crypto = "0.2"
+hex = "0.4.0"
+csv-core = "0.1.6"