update cart

proto/messages.proto

@@ -12,6 +12,7 @@ message SetCartRequest {
 }
 
 message AddItem {
+		int64 item_id = 1;
 		int32 quantity = 2;
 		int64 price = 3;
 		int64 orgPrice = 9;
@@ -20,6 +21,12 @@ message AddItem {
 		string image = 6;
 		int32 stock = 7;
 		int32 tax = 8;
+		string brand = 13;
+		string category = 14;
+		string category2 = 15;
+		string category3 = 16;
+		string category4 = 17;
+		string category5 = 18;
 		string disclaimer = 10;
 		string articleType = 11;
 		optional string outlet = 12;