SDF CutCircle

Inputs
float Radius | default 0.5
float CutHeight | default 0.3
Behaviour
Outputs the signed distance field for a CutCircle, based on the provided Radius. Where in the circle the cut is placed can be controlled with the CutHeightparameter. 0 - 0.5 is the upper half of the circle, whilst 0.5 - 1.0 is the lower half.
