Use cesium typing.

[Crocsx]

It should be good to upgrade the package so that it use cesium default typing and not angular-cesium special typing for Cartesia3/Cartesian3...

also, removing cesium from the window scope "./node_modules/cesium/Build/Cesium/Cesium.js" and just using necessary package.

I will try to look at it.

EDIT : I checked the code, and some functionality will be missing by doing so. If we don't import cesium library in the window scope, but use es6 import, some code like primitives-primitives and the htmlPrimitive extensions for exemple will not be possible...