Publish the Locale class under package:intl/locale.dart

PiperOrigin-RevId: 282560089
diff --git a/lib/locale.dart b/lib/locale.dart
new file mode 100644
index 0000000..14b65d0
--- /dev/null
+++ b/lib/locale.dart
@@ -0,0 +1,2 @@
+/// This library provides access to the [Locale] class.
+export 'src/locale.dart';
diff --git a/test/locale_test.dart b/test/locale_test.dart
index 9b37792..6698e4d 100644
--- a/test/locale_test.dart
+++ b/test/locale_test.dart
@@ -11,7 +11,7 @@
 /// to be tested.
 
 import 'package:test/test.dart';
-import 'package:intl/src/locale.dart';
+import 'package:intl/locale.dart';
 
 import 'locale_test_data.dart';