Add support for default orientation output

[MichaelElmore1]

Currently, there is a getOrientation() method that can be overriden, but doing so does nothing. This change makes it so overriding the getOrientation() method in a sensor config will automatically create an orientation output, similar to how it works when overriding getLocation().

Usage:

public PositionConfig.EulerOrientation orientation = new PositionConfig.EulerOrientation();

@Override
public PositionConfig.EulerOrientation getOrientation() {
    return orientation;
}

Or, if using both location and orientation:

public PositionConfig positionConfig = new PositionConfig();

@Override
public PositionConfig.LLALocation getLocation() {
    return positionConfig.location;
}

@Override
public PositionConfig.EulerOrientation getOrientation() {
    return positionConfig.orientation;
}

[alexrobin]

Can you try to fix the failing test so I can merge this?

[MichaelElmore1]

I removed the FOI for orientation, which fixes the failing test. If orientation needs an FOI, I can add it back in and adjust the tests accordingly, but I don't know that it makes sense for orientation to have an FOI.