Method count

Processor/Data_Files.h:113–114

  bool do_count;

  void count(Dtype dtype, int n = 1)
  { usage.files[T::clear::field_type()][dtype] += do_count * n; }
  void count_input(int player)
  {
    usage.inputs.resize(max(size_t(player + 1), usage.inputs.size()));