[sensors_plus] Get current device pitch, yaw and roll

[JamesManningR]

As far as I'm aware, the Gyroscope events return the delta of the change, but these are never consistent enough to calculate the current orientation of the device. (or at least to keep track of it's orientation from a calibrated point)

Unless I'm missing something (in which case it would be great to know how to) I don't think this package is able to provide the devices current orientation as a float value.

I think it would be very helpful to have access to this information.

[github-actions]

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