Array of inValues for points on the curve.
inValues represent control points that do not lie on the curve, but
correspond to control points that do lie on the curve. The inValue
determines the shape of the curve before its corresponding point.
Array of outValues for points on the curve.
outValues represent control points that do not lie on the curve, but
correspond to control points that do lie on the curve. The outValue
determines the shape of the curve after its corresponding point.
Contains Vector2 keyframes for Bezier interpolation.