Added new AuthenticatorProtocol for modular authenticators

Author: dimitribouniol

Sources/WebAuthn/Authenticators/Protocol/AuthenticatorCredentialSourceProtocol.swift

@@ -0,0 +1,17 @@
+//===----------------------------------------------------------------------===//
+//
+// This source file is part of the WebAuthn Swift open source project
+//
+// Copyright (c) 2024 the WebAuthn Swift project authors
+// Licensed under Apache License v2.0
+//
+// See LICENSE.txt for license information
+// See CONTRIBUTORS.txt for the list of WebAuthn Swift project authors
+//
+// SPDX-License-Identifier: Apache-2.0
+//
+//===----------------------------------------------------------------------===//
+
+public protocol AuthenticatorCredentialSourceProtocol: Sendable {
+    
+}

Sources/WebAuthn/Authenticators/Protocol/AuthenticatorProtocol.swift

@@ -0,0 +1,17 @@
+//===----------------------------------------------------------------------===//
+//
+// This source file is part of the WebAuthn Swift open source project
+//
+// Copyright (c) 2024 the WebAuthn Swift project authors
+// Licensed under Apache License v2.0
+//
+// See LICENSE.txt for license information
+// See CONTRIBUTORS.txt for the list of WebAuthn Swift project authors
+//
+// SPDX-License-Identifier: Apache-2.0
+//
+//===----------------------------------------------------------------------===//
+
+public protocol AuthenticatorProtocol<CredentialSource> {
+    associatedtype CredentialSource: AuthenticatorCredentialSourceProtocol
+}