Merge branch 'feature/base_flutter_1.12_upgrade' into feature/base_flutter_1.12_upgrade_for_androidx

# Conflicts:
#	android/src/main/java/com/idlefish/flutterboost/Platform.java
#	android/src/main/java/com/idlefish/flutterboost/XFlutterTextureView.java
#	android/src/main/java/com/idlefish/flutterboost/containers/FlutterSplashView.java
#	example/android/gradle.properties

update

update doc

Create no-response.yml

# Conflicts:
#	README.md
#	README_CN.md
#	android/src/main/java/com/idlefish/flutterboost/FlutterBoostPlugin.java
#	android/src/main/java/com/idlefish/flutterboost/FlutterViewContainerManager.java

Add no-response bot to flutter-boost. 

Maintainers just need to add more-information-needed label to the issue. The bot will automatically close the timeout issue without getting more information. If the issue adds more information after it is closed, the bot will reopen the issue and remove the more-information-needed label.

issue模板

add designated initializer

fixed cupertino page transition issue

BoostPageRoute 重写的 buildTransitions 返 MaterialPageRoute.buildTransitions 的结果，避免了 CupertinoPageRoute 跳转页面首页面跳转动画 secondaryAnimation 失效问题