Add license headers

Author: aryan-25

Sources/HTTPServer/NIOSSL+X509.swift

@@ -1,3 +1,16 @@
+//===----------------------------------------------------------------------===//
+//
+// This source file is part of the Swift HTTP Server open source project
+//
+// Copyright (c) 2025 Apple Inc. and the Swift HTTP Server project authors
+// Licensed under Apache License v2.0
+//
+// See LICENSE.txt for license information
+//
+// SPDX-License-Identifier: Apache-2.0
+//
+//===----------------------------------------------------------------------===//
+
 import NIOSSL
 import SwiftASN1
 import X509

Tests/HTTPServerTests/Utilities/Certificates.swift

@@ -1,3 +1,16 @@
+//===----------------------------------------------------------------------===//
+//
+// This source file is part of the Swift HTTP Server open source project
+//
+// Copyright (c) 2025 Apple Inc. and the Swift HTTP Server project authors
+// Licensed under Apache License v2.0
+//
+// See LICENSE.txt for license information
+//
+// SPDX-License-Identifier: Apache-2.0
+//
+//===----------------------------------------------------------------------===//
+
 import Crypto
 import Foundation
 import X509

Tests/HTTPServerTests/Utilities/Client.swift

@@ -1,3 +1,16 @@
+//===----------------------------------------------------------------------===//
+//
+// This source file is part of the Swift HTTP Server open source project
+//
+// Copyright (c) 2025 Apple Inc. and the Swift HTTP Server project authors
+// Licensed under Apache License v2.0
+//
+// See LICENSE.txt for license information
+//
+// SPDX-License-Identifier: Apache-2.0
+//
+//===----------------------------------------------------------------------===//
+
 import NIOCore
 import NIOHTTPTypes
 import NIOHTTPTypesHTTP1

Tests/HTTPServerTests/Utilities/SocketAddress.swift

@@ -1,3 +1,16 @@
+//===----------------------------------------------------------------------===//
+//
+// This source file is part of the Swift HTTP Server open source project
+//
+// Copyright (c) 2025 Apple Inc. and the Swift HTTP Server project authors
+// Licensed under Apache License v2.0
+//
+// See LICENSE.txt for license information
+//
+// SPDX-License-Identifier: Apache-2.0
+//
+//===----------------------------------------------------------------------===//
+
 @testable import HTTPServer
 
 extension HTTPServer.SocketAddress {