* BIM: add properties for static sun sphere representation
* BIM: create Coin3D nodes for the sun sphere
* BIM: implement logic for static sun representation
* BIM: add additional info properties to sun ray
* BIM: use Draft.Line for sun ray, improve visual appearance
* BIM: color code the sun path arc
* BIM: add hour marker points to the sun path arc
* BIM: make sun path diagram smoother
* BIM: add conditional sun hour marker labels
* BIM: set constraints to time values
* BIM: remove redundant import
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