v0.2.1 Update Notes

[b]Additions[/b] Added several treasures; Added several battle battlefields; Added rules for automatic fire extinguishing after the city was occupied; [b]Optimization[/b] Optimized the appearance probability of offspring and promotion; Optimized the appearance location of some generals; Optimized the location of Maicheng; Optimized the battle battlefield operation; Optimized the power relationship of generals in the script; [b]Repairs[/b] Repaired the problem that the number of troops was not reset after the bandit camp was conquered; Repaired the problem of abnormal fast battle experience;