Action item: Writeup contrasting Solid Pods, Data Hubs and Agents

[dmitrizagidulin]

Proposed deliverable of this panel:

Let's create a writeup / post discussing the differences and similarities between Solid Pods, DIF Data Hubs, Secure Data Hubs, and Aries Agents.

For example, this coming Tuesday Aug 13th Credentials Community Group call (see link for call details) will be featuring an introduction comparing Agents, Data Hubs and Secure Data Hubs (see Slide Deck) -- and it mentions Solid!.

It would be great to create a similar document (shorter), from Solid's perspective.