Deprecation warnings

[Thegrep01]

Hi! When build an apk with your lib i got 22 warnings like this

[deprecation] Camera in android.hardware has been deprecated
import android.hardware.Camera; 

[deprecation] Camera in android.hardware has been deprecated
                .setFlashMode(useFlash ? Camera.Parameters.FLASH_MODE_TORCH : null)

[edufolly]

Hi, @Thegrep01

Probably I need to implement Camera2, but I don't know if the Google Mobile Vision will support it.