Init login feature add domain layer

lib/features/login/domain/repository/authentication_repository.dart

@@ -0,0 +1,5 @@
+import 'package:model/model.dart';
+
+abstract class AuthenticationRepository {
+  Future<User> authenticationUser(Uri baseUrl, UserName userName, Password password);
+}

lib/features/login/domain/repository/credential_repository.dart

@@ -0,0 +1,21 @@
+import 'package:model/model.dart';
+
+abstract class CredentialRepository {
+  Future saveBaseUrl(Uri baseUrl);
+
+  Future removeBaseUrl();
+
+  Future<Uri> getBaseUrl();
+
+  Future saveUserName(UserName userName);
+
+  Future removeUserName();
+
+  Future<UserName> getUserName();
+
+  Future savePassword(Password password);
+
+  Future removePassword();
+
+  Future<Password> getPassword();
+}