Redesign: Implement home page

The home page needs to be implemented for the eclipse.org redesign.

Resources:

• Desktop Mockup: https://xd.adobe.com/view/41a9af34-5e1b-4966-b770-a8aebe3a720a-14fa/
• Mobile Mockup: https://xd.adobe.com/view/54c9d533-e6fa-4d89-b1e7-38492514d866-019a/
• Image: https://gitlab.eclipse.org/eclipsefdn/marketing/uploads/301ec814f73df5b35df4c4ab74930575/MainBanner-117.jpg