implement create game view

lib/data/dto/game.dart

@@ -0,0 +1,23 @@
+import 'package:clock/clock.dart';
+import 'package:uuid/uuid.dart';
+
+class Game {
+  final String id;
+  final DateTime createdAt;
+  final String name;
+  final String? ruleset;
+  final String? description;
+  final int? color;
+  final String? icon;
+
+  Game({
+    String? id,
+    DateTime? createdAt,
+    required this.name,
+    this.ruleset,
+    this.description,
+    this.color,
+    this.icon,
+  })  : id = id ?? const Uuid().v4(),
+        createdAt = createdAt ?? clock.now();
+}