fixed galaxy camera movement while in options menu
big bang was unexpectedly too star color sorted; now the direction is independet of the star itself
fixed mass display number for extremly high values; unfortunately Steam does only support int32 for the leaderboard, which means the max stellar mass on the leaderboard is 2.147.483.647
Added Features
therefore added new leaderboards; one with stellar mass divided by 1000 and one with the amount of absorbed stellar objects
added an absorbed counter
added achievement for tutorial
added requested Xbox controller support for the black hole control, the tutorial and also for the UI; other controller can work too, but I couldn't test them; still recommend to use mouse and keyboard for the UI navigation