Update UNVTD Site Information Architecture

We need to make the site more business user focussed without losing any technical integrity. Here's a proposal for a site IA

• Home Page (what is this project, why is it important, who is the intended audience)
• Governance (how is this project governed, terms of reference, participation rules)
  • Architecture (key architecture principles and rationale)
  • Meetings (calendar, zoom links, historical meetings summaries & recordings)
  • Partnerships (relationships to other initiatives eg ICC DSI, etc)
• Business Use cases
  • National Productivity
  • Border Compliance
  • Trade Finance
  • etc..
• Verifiable Trade Documents
  • Commercial Invoice
  • Bill of Lading
  • Certificate of Origin
  • etc..
• Implementation Guidance
  • Test Playground
• Implementations Register
  • Software Systems
  • National Initiatives