Function add

modules/core/task/include/SkrTask/fib_task.hpp:40–40

        bool operator==(const counter_t& other) const { return internal == other.internal; }
        void wait(bool pin) const { internal->GetScheduler()->WaitForCounter(internal.get(), pin); }
        void add(const unsigned int x) { internal->Add(x); }
        void decrement() { internal->Decrement(); }
        bool test() const { return internal->Done(); }
        size_t hash() const { return std::hash<void*>{}(internal.get()); }