Assist.samplePopulationHistory does not exist

[kojima0615]

I ran your implementation of VAE-EDA-Q and it did not work.
One reason is that Assist.samplePopulationHistory does not exist, so selection from the population queue was not possible.
The second reason is that the individuals are not arranged in order of evaluation value because the array sorted by evaluation value is not assigned in Fittness.tournamentprob.

We corrected these, but the algorithm could not find the optimal solution.
I would appreciate you fixing these issues and re-uploading.