SVGgh contains a class, SVGPathGenerator, which will convert an SVG path to a CGPathRef:
+(CGPathRef) newCGPathFromSVGPath:(NSString*)anSVGPath whileApplyingTransform:(CGAffineTransform)aTransform;
You can use it to do exactly what you request.
[Swift 3 Update] If you want a pure Swift solution. My (in progress) Scalar2D library has an extension on CGPath that creates a CGPath from an SVG path.
