Statically load whether or not a key requires authentication before use (#357)

* Add protocol requirements

* Load auth settings.

* Updates.

* Update preview store

* Add lock icon

Sources/Packages/Sources/SecureEnclaveSecretKit/SecureEnclaveSecret.swift

@@ -11,6 +11,7 @@ extension SecureEnclave {
         public let name: String
         public let algorithm = Algorithm.ellipticCurve
         public let keySize = 256
+        public let requiresAuthentication: Bool
         public let publicKey: Data
 
     }