React-native-ui-kitten: Docs: add examples for ES6 javascript

[breakhack]

currently all examples are written in typescript, it would be great to see examples of implementations in javascript

[Hedronmx]

I am dying because of this, trying to make them work in es6...

[taslimy]

I am having the same issues i try to do it with es6 not working out very well.

[joeyscarim]

would be extremely helpful for me as well

[breakhack]

nice!!! )))