Little compass rose for external view, always relative to the camera

[FalcoGer]

I'd like a little compass rose that's rotating with the external views. The infobar shows the heading only when in free cam or the heading of the object you are viewing. But often it's nice to know which direction you are looking in instead. I propose a little compass rose somewhere on the screen that's always relative to the direction you're looking in.

Example from dangerous waters.