Added Resource Library

Property	Value
description	Added the public Resource Library section and first resource records.
version	0.69.0
type	Create
related	Resource Library

• Added content_type: res as a first-class public content model.
• Added the /res section, Resource Library sidebar entry, navbar link, footer link, template, and table views.
• Added starter resources for Google Design.md and Cloudflare Queues.