Adds Library Omniscient.js and approach article for top-down render

This might be interesting for some. Adds the following:
* Repo for library and description how to do top-down rendering with immutable data
* Article describing the unidirectional flow and immutable data architecture more theoretically.
Merge branch 'patch-1' of github.com:mikaelbr/awesome-react into mikaelbr-patch-1
Merge branch 'mikaelbr-patch-1'