Support the Response object in assertObjectMatch

**Is your feature request related to a problem? Please describe.**

I'm creating some tests for a server handler, and assertObjectMatch didn't work as expected on the responses.

**Describe the solution you'd like**

That

```
assertObjectMatch(new Response(), { status: 200 });
assertObjectMatch(new Response(null, { status: 400, statusText: "Not Found" }), { status: 400, statusText: "Not Found" });
```

would work.

**Describe alternatives you've considered**

The Response object does not have enumerable properties, so there's no elegant way to convert it into a plain object.

An alternative is to map the values manually:

```
const response = new Response()

assertObjectMatch(
{
status: response.status
},
{
status: 200
}
)
```