addition and modification

[*]added free DLC for more characters:
https://store.steampowered.com/app/1507920/1/?curator_ clanid=39050357
[*]added new map - China Tour
[*]you can set the starting map, money and ticket

bug

[*]fix background music problem

Single production, no testers, if there is a bug, contact me in time!!!!
Looking forward to your feedback, I will revise it in time! Can add official QQ group: 1060671582