When only some endpoints have a custom route, rendering of the links for included resources is incorrect. See [here](https://github.com/json-api-dotnet/JsonApiDotNetCore/blob/02496277f072ccecd574449126700bbfa17ed34d/test/JsonApiDotNetCoreExampleTests/IntegrationTests/HostingInIIS/HostingTests.cs#L60) and [here](https://github.com/json-api-dotnet/JsonApiDotNetCore/blob/02496277f072ccecd574449126700bbfa17ed34d/test/JsonApiDotNetCoreExampleTests/IntegrationTests/HostingInIIS/HostingTests.cs#L106). This likely can be solved by using the route dictionary for rendering links, as proposed in #953.
