New GuiRender3DPositionToWorldPosition and WorldPositionToGuiRender3DPosition in beta

[dorrino]

OK, the time has come to ask

What exactly are world coordinates? What constitutes as the 'world' here? The current zone? All of Tamriel?

Is it akin to lib GPS global map coordinates, but for the 3d world?

How would one convert from those world 3d coordinates to local 3d coordinates?

Thanks.