Dynamic Texture update does not consider invertY argument values

## Overview

When calling ```DynamicTexture.update``` with values given to the invertY argument nothing happens in Babylon Native. The invertY arguments get completely ignored by the NativeEngine.

From forum issue: https://forum.babylonjs.com/t/react-native-dynamic-texture-update-inverty-parameter-is-not-working-as-expected/36916

**Describe the bug**
When calling ```DynamicTexture.update``` we always get the same results no matter if we give true or false to the ```invertY``` argument.

**To Reproduce**
The following Playground does not render properly in Babylon Native: https://playground.babylonjs.com/#FU0ES5#32

**Expected behavior**
Texture should be flipped on the Y axis when invertY is set to true.