new random in shogun prototype

random.h

template <typename RandomEngine = std::mt19937> class CRandom {
public:
  CRandom() {
  
  }
  CRandom(uint32_t seed);
  ~CRandom();
  
  int32_t random(int32_t from, int32_t to) const
  {
    std::uniform_int_distribution<int> uniform_dist(from, to);
    return uniform_dist(m_engine);
  }
private:
  RandomEngine m_engine;

};