Given two binary vectors, return the two children by combining the genes of them using a binary crossover mask.

More information: Uniform crossover

• Parents and mask are row vectors of the same size N;
• Output is a 2 x N matrix containing both children;
• The first child must have genes from the first parent at the positions where the mask is true, and genes from the second parent where the mask is false;
• The second child must have genes from the first parent at the positions where the mask is false, and genes from the second parent where the mask is true;
• The mask is also supplied.

Example:

mask    = [1 0 0 0 1 1 1 0 0];
parent1 = [0 0 0 1 1 1 0 0 0];
parent2 = [1 1 0 0 1 0 1 1 0];

children = [0 1 0 0 1 1 0 1 0;
            1 0 0 1 1 0 1 0 0];