simpleXover:

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   Simple crossover takes two parents P1,P2 and performs simple single
   point crossover. 

   Since version 7.
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   Form:
   [c1,c2] = simpleXover(p1,p2,bounds,Ops)
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   ------
   Inputs
   ------  
   p1              the first parent ( [solution string function value] )
   p2              the second parent ( [solution string function value] )
   bounds          the bounds matrix for the solution space
   Ops             Options matrix for simple crossover [gen #SimpXovers].

   -------
   Outputs
   -------
   c1
   c2

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