getHeadEulerAngleX like in MLKit

[itamardo]

I see that the documentation for MLKit defines the X Euler angle as well, but in the vision plugin I can only find the Y and Z Euler angles (headEulerAngleY and headEulerAngleZ).

Can you implement the pitch angle (Euler X) as well?

Ref:
https://developers.google.com/android/reference/com/google/mlkit/vision/face/Face#getHeadEulerAngleX()