* BIM: fix handling of BIM_Sketch view properties
The handling of the sketch view properties was not correct:
* AutoColor was not set to `False`.
* PointSize was missing.
* PointColor was not set to the DefaultShapeVertexColor preference.
* Grid values were never applied. Sketches do not have a GridSnap property and gridSize is not the correct Draft preference.
* Sketch grid snap is a global setting that affects all sketches, the code should not change that setting IMO.
* Remove trailing white space