Bounding boxes are not transformed correctly with rotation transforms. This is due to only storing the min and max corners, and assuming that after rotations the corners still contain the minimum and maximum coordinates. This change stores all 4 corners (for 2D; 8 corners for 3D) in the BoundingBox. All of these corner points are transformed, and we can accurately calculate the min and max as needed (by itemdata).
Bounding boxes are not transformed correctly with rotation transforms. This is due to only storing the min and max corners, and assuming that after rotations the corners still contain the minimum and maximum coordinates. This change stores all 4 corners (for 2D; 8 corners for 3D) in the BoundingBox. All of these corner points are transformed, and we can accurately calculate the min and max as needed (by itemdata).
Fixes #94
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