Function embedded_curve_add
pub fn embedded_curve_add(
point1: EmbeddedCurvePoint,
point2: EmbeddedCurvePoint,
) -> EmbeddedCurvePoint
pub fn embedded_curve_add(
point1: EmbeddedCurvePoint,
point2: EmbeddedCurvePoint,
) -> EmbeddedCurvePoint
This function assumes that the points are on the curve