Extract assorted documentation sources into built docs

[GDYendell]

There are various sources of useful information:

• https://github.com/stfc-aeg/odin-workshop
• https://github.com/odin-detector/odin-detector.github.io/tree/wip
• https://github.com/odin-detector/odin-data/blob/master/cpp/frameProcessor/README.md
• https://github.com/odin-detector/odin-data/blob/master/cpp/test/integrationTest/README.md

These could be pulled into the appropriate user/developer documentation tree and expanded upon with further content and links.