DefaultCheck should apply default values

[thomas11]

Currently, defaults get applied by non-standard Check but not by infer.DefaultCheck. Since the purpose of infer.DefaultCheck is to mirror the default behavior of the Check call, defaults should be applied.

Resolves #238

[danielrbradley]

This looks reasonable to me ... a little tricky to follow how each of these functions are called and how they might interact with each other, but seems like they're just parallel implementation from your experimentation.

Looks like this just replicates the behaviour from:

pulumi-go-provider/infer/resource.go

Lines 872 to 874 in 1a6b4f8

	if err := applyDefaults(&i); err != nil {
	return p.CheckResponse{}, fmt.Errorf("unable to apply defaults: %w", err)
	}

Would it be possible to make derivedResourceController.Check call into this method so we inherit the behaviour rather than mirror the implementation (no idea if this would be feasible and I think this tactical fix is good for an initial change - just thinking for future consideration)?

[iwahbe]

A couple suggestions (very similar to @danielrbradley). The change looks good.