Add a NIOFileSystem shim

Package.swift

@@ -38,7 +38,7 @@ let package = Package(
         .library(name: "NIOFoundationCompat", targets: ["NIOFoundationCompat"]),
         .library(name: "NIOWebSocket", targets: ["NIOWebSocket"]),
         .library(name: "NIOTestUtils", targets: ["NIOTestUtils"]),
-        .library(name: "_NIOFileSystem", targets: ["_NIOFileSystem"]),
+        .library(name: "_NIOFileSystem", targets: ["_NIOFileSystem", "NIOFileSystem"]),
         .library(name: "_NIOFileSystemFoundationCompat", targets: ["_NIOFileSystemFoundationCompat"]),
     ],
     dependencies: [
@@ -208,6 +208,13 @@ let package = Package(
                 .define("ENABLE_MOCKING", .when(configuration: .debug))
             ]
         ),
+        .target(
+            name: "NIOFileSystem",
+            dependencies: [
+                "_NIOFileSystem",
+            ],
+            path: "Sources/_NIOFileSystemExported"
+        ),
         .target(
             name: "_NIOFileSystemFoundationCompat",
             dependencies: [

Sources/_NIOFileSystemExported/Exports.swift

@@ -0,0 +1,15 @@
+//===----------------------------------------------------------------------===//
+//
+// This source file is part of the SwiftNIO open source project
+//
+// Copyright (c) 2024 Apple Inc. and the SwiftNIO project authors
+// Licensed under Apache License v2.0
+//
+// See LICENSE.txt for license information
+// See CONTRIBUTORS.txt for the list of SwiftNIO project authors
+//
+// SPDX-License-Identifier: Apache-2.0
+//
+//===----------------------------------------------------------------------===//
+
+@_exported import _NIOFileSystem