[redesign-2021] - Adopters page

As previously noted, the new design is available here: #91 (closed)

Adopters: https://projects.invisionapp.com/share/5C10DOVC3QTG#/screens/446432552

Deliverables:

• Jumbotron
• Adopters with Get listed link
• List of adopters

We currently only capture the logos of our adopters. This is being discussed via https://github.com/EclipseFdn/eclipsefdn-project-adopters/issues/38

The description for each adopter is NOT in the scope of this issue. We only need to list the logos of our adopters by project on this page.