added more blocs

lib/repositories/account/models/category.dart

@@ -0,0 +1,21 @@
+class Category {
+  String label;
+  String color;
+
+  Category({
+    this.label = '',
+    this.color = '',
+  });
+
+  factory Category.fromJson(Map<String, dynamic> json) {
+    return Category(
+      label: json['label'],
+      color: json['color']
+    );
+  }
+
+  Map<String, String> toJson() => {
+    'label': label,
+    'color': color,
+  };
+}