React JS template and sdk support

[oniseijin]

As done in #1681 and #1687 have React JS support.
This is mentioned in the Bladerunner js docs as being possible, so, actually doing it would prove a lot and open up more use cases.

This would mean template, unit test, integration test, aspects, blades etc.

Preference is to use React in the same way as knockout/angular, namely the template separate from the code, but this may not be the "React way" and might have only limited support (https://wix.github.io/react-templates/); +JSX support (babel hook)?

[oniseijin]

Next problem: dependencies: there are many and quite a bit more than what I had to do for basic angular2 support; and, having that npm support within brjs would make this much easier. This isn't even babel or react-templates.
react and react-dom:

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[briandipalma]

@oniseijin We've put active BRJS work on hold and are focusing on CT.Next which will is based on npm and webpack. I don't see us doing any npm work in BRJS tbh.