Adding the Kolmogorov test

[filippopericoli]

Is your feature request related to a problem? Please describe.
I find your package very interesting, I would just use another R function to make it a bit more complete, even though it is not a big proposal change min

Describe the solution you'd like
I would like to add the Kolmogorv-Smiirnov test already available in R to get a confirmation that the proposal distribution is a good candidate for data at hand. The result of the test would help in understanding that not only the selected distribution is the best one in relative terms, but also that it does a good job in approximating the data at disposal

Describe alternatives you've considered
The test can be added as described here:
https://www.geeksforgeeks.org/kolmogorov-smirnov-test-in-r-programming/#:~:text=The%20Kolmogorov%2DSmirnov%20Test%20is,two%2Dsample%20K%2DS%20test).
One has to use the command ks(x,y,) where x and y are the 2 distributions. The only trick is that one has to random from the proposal distribution and from the data a sample or repeated samples.

Additional context
I don't have nothing else to add. Good luck. I am happy to share ideas and projects.