Separate between rooms using the new saving feature, rooms that have been shared and rooms that are on the old saving feature

[Cosmin-Mare]

This separation should be done as soon as one of the new features is activated, and would be represented by a bool in the db. They should also have some kind of icons in the my games section and rooms using the new saving feature should not be able to use the old one also, because of how the saving server works.