npm/react-native-navigation: react-native-navigation的迁移库

react-native-navigation的迁移库

Guy Carmeli bd35145c99 Add dismissModal method to Android Also changed the structure used to store Modals from a Map based on navigatorId to a stack. Reason for the change is that screens can be pushed only to the topmost Modal.		9 lat temu
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modules	Added missing RctActivity module	9 lat temu
Navigation.js	Merge branch 'Android_implementation'	9 lat temu
Screen.js	add toggle tab bar navigation visibility	9 lat temu
platformSpecific.android.js	Add dismissModal method to Android	9 lat temu
platformSpecific.ios.js	Add dismissModal method to Android	9 lat temu
utils.js	improved es6 syntax, thanks tautvilas	9 lat temu