[typescript-rtk-query] allow for automatic transform response in codegen

**Describe the solution you'd like**

I would like the codegen to automatically generate transformResponse function when api endpoint is generated e.g.

```
Feed: build.query({
query: (variables) => ({ document: FeedDocument, variables })
transformResponse: (response: FeedQuery) => response
}),
```

The reason is that I end up manually adding this every time because the api will send something like `data.applications` instead of `applications`