Creating Memento class

[EreliaStudio]

The Memento is a templated class that must allow user to take "snapshot" of the template type, and must allow the user to "load" those snapshot back. The idea is to create a system allowing rewind of a set of event.

Interface proposition:

template <typename TType>
class Memento
{
public:
    class Snapshot
    {
    public:
        void save(const TType* p_objectToCapture) = 0;
        void load(TType* p_objectToRestore) = 0;
    };
private:

public:
    Snapshot* takeSnapshot();
    void restoreSnapshot(const Snapshot* p_snapshot);
};

[EreliaStudio]

Pull request accepted, we can close this Issue