Add the program code

There is a program that estimates the set of stock prices using a moving average, smoothing spline and b-spline, it is necessary that this program still noted all the buy and sell signals with the intersection of the price curve and smoothing curves and also that the program selects various parameters of the curves that will be optimal.

P.S. Parameters should be such that the moving average itself behaved worse than splines, that is, went up after the ejection, but the parameter should be optimal.