QoL: show ROM title in window title

[jkotlinski]

It's practical to have ROM title in window title, to see which window is which.

A related useful feature would be if ROM title was be printed instead of "SameBoy" when Alt-Tabbing.

(I'm using the SDL port)

[Jan200101]

Instead of just the game / rom title I suggest doing something like Pokemon Yellow - Sameboy.