Currently there is no binary file support for RB, exluding my other

changes. With this arhive files can be posted and reviewed at a

basic level. Reviewers can look through a repersentation of the archive

proposed to be submitted. No support for commonenting or presenting the

actual changes is include in this PR as that was out of scope. The 

archive is represented as a JSON file tree and does not have any css or

less changes to make it more unified with the rest of RB. These style

changes will need to be included in a later review request. The JSON

file tree is created using a library called JSTree and is currently

under a MIT license, https://github.com/vakata/jstree/. This feature

does require the changes from my other binary file PRs to function.

Specifically: r/10729, r/10728, and one change from r/10766.

Create a test repo and walked through the steps of a review process.

Posted change, look and interacted with change, then shipped change.

Also wrote tests for parsing the archive files; empty, one level, 

and multi level archives.