feat: temp barcode templates

barcodes/attributes/client_name_attribute_getter.py

@@ -0,0 +1,8 @@
+from barcodes.attributes import BaseAttributeGetter
+from models import Product, Client
+
+
+class ClientNameAttributeGetter(BaseAttributeGetter):
+    def get_value(self, product: Product):
+        client: Client = product.client
+        return client.name