fix: 🐛 bitcode bug

Merge branch 'master' of github.com:ChenYilong/CYLTabBarController

style: 💄 code formating

fix: 🐛iOS13/iOS14 tabbar appearance bug #483 #474 #437

Merge pull request #542 from wbcyclist/patch-1

fix: 修正TabbarButton的cyl_isSelected状态

fix: 🐛 titlePositionAdjustment does not work in iOS13

Update MainTabBarController.m

fix: 🐛 #495 remove entitlements file setting

docs: show two ways to chagne tabbar shadow color

style: change tabbar shadowImageView color in demo

fix: v1.28.5 key icon center without title, edit shadow appearance in iOS13

style: update launch images

fix: remove useless breakpoint

fix(xcode11): available to Xcode below version11