Enable achievement popups during cutscenes

[asher_sky]

Currently if a player is in a cutscene, achievements can still be unlocked but players will not see the popup and the sound will not play. I request that newly unlocked achievement popups are shown to players who are in cutscenes.

Alternatively, an option to add "shown-while-in-cutscene" bool (or something to that effect) in the achievement prototype.