Adds a clock to the top left corner, saying how long the current game has been running.
Providing the player with new tools or adjusting the game interface, without fundamentally changing gameplay.
the GUI is frozen when i update to 1.1.2,time GUI stopped,and when i go back to 1.1.1,the GUI time is less than the real save time(save show 10h20min,but the GUI is 10h10min.)
