Move CameraNode to Kotlin

[FernandoScanavino]

(from Thomas Gorisse at discord #help channel)

If you want to experiment kotlin-math, there are still some parts of the code using the old Vector3, Sceneform Quaternion,.. to move to kotlin-math A good start could be to move the CameraNode to Kotlin Everything is natural within kotlin-math thanks to Kotlin operator functions E.g inside CameraNode:

Matrix m = new Matrix();
Matrix.multiply(projectionMatrix, getViewMatrix(), m);
Matrix.invert(m, m);

Should become this: val matrix = inverse(projectionMatrix * viewMatrix) I really suspect that some AR camera stream flickering and maybe the ones that you saw comes from some wrong old CameraNode calculations

[FernandoScanavino]

Will work in https://github.com/fernando-scanavino/sceneview-android-fork/tree/issue-135

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