An experimental LPSolverWrapper class which uses glpk. For a short
demo, max flow problems are solved with it. This demo does not
demonstrates, but the main aims of this class are row and column
generation capabilities, i.e. to be a core for easily
implementable branch-and-cut a column generetion algorithms.

 #include "test_tools.h"

 int main() 

 {

   check(false, "Don't panic. Failing is the right behaviour.");

   return 0;

 }