Update SwiftFoundationICU to embed data files in the binary (#14)

* Update SwiftFoundationICU to embed data files in the binary

* Split the data into four chunks as opposed to 5 and added byte alignment attribute since it's required by ICU

Author: iCharlesHu

Package.swift

@@ -72,11 +72,7 @@ let package = Package(
                 "ICUIO",
                 "ICUStubData"
             ],
-            path: "swift/FoundationICU",
-            resources: [
-                .copy("icudt70l.dat"),
-                .copy("icutz44l.dat"),
-            ]),
+            path: "swift/FoundationICU"),
         .target(
             name: "ICUCommon",
             path: "icuSources/common",

icuSources/common/icu_packaged_data.h

@@ -0,0 +1,40 @@
+//===----------------------------------------------------------------------===//
+//
+// This source file is part of the Swift.org open source project
+//
+// Copyright (c) 2023 Apple Inc. and the Swift project authors
+// Licensed under Apache License v2.0 with Runtime Library Exception
+//
+// See https://swift.org/LICENSE.txt for license information
+// See https://swift.org/CONTRIBUTORS.txt for the list of Swift project authors
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef ICU_PACKAGED_DATA_H
+#define ICU_PACKAGED_DATA_H
+
+#include "icu_packaged_main_data.0.inc.h"
+#include "icu_packaged_main_data.1.inc.h"
+#include "icu_packaged_main_data.2.inc.h"
+#include "icu_packaged_main_data.3.inc.h"
+
+#include "icu_packaged_timezone_data.0.inc.h"
+#include "icu_packaged_timezone_data.1.inc.h"
+#include "icu_packaged_timezone_data.2.inc.h"
+#include "icu_packaged_timezone_data.3.inc.h"
+
+uint8_t const _ICUPackagedMainData[] __attribute__ ((aligned (8))) = {
+    __ICU_PACKAGED_MAIN_DATA_CHUNK_0,
+    __ICU_PACKAGED_MAIN_DATA_CHUNK_1,
+    __ICU_PACKAGED_MAIN_DATA_CHUNK_2,
+    __ICU_PACKAGED_MAIN_DATA_CHUNK_3
+};
+
+uint8_t const _ICUPackagedTimeZoneData[] __attribute__ ((aligned (8))) = {
+    __ICU_PACKAGED_TIMEZONE_DATA_CHUNK_0,
+    __ICU_PACKAGED_TIMEZONE_DATA_CHUNK_1,
+    __ICU_PACKAGED_TIMEZONE_DATA_CHUNK_2,
+    __ICU_PACKAGED_TIMEZONE_DATA_CHUNK_3
+};
+
+#endif // ifndef ICU_PACKAGED_DATA_H