bump to 4.5.0

CHANGELOG.md

+# 4.5.0
+* Fix #599
+* 破坏性更新：从4.5.0起，当分享图片到微信时，如果不支持FileProvider方式分享，Fluwx不再尝试申请WRITE_EXTERNAL_STORAGE权限，这意味着你需要自己处理权限问题。
+
 # 4.4.10
 * Merge #596
 

README.md

@@ -30,6 +30,8 @@
 
 [Migrate to V4 now](./doc/MIGRATE_TO_V4_CN.md)
 
+> Breaking changes ：*Fluwx* won't request permission(WRITE_EXTERNAL_STORAGE) since 4.5.0. That means you will need to handle permission when sharing images, if FileProvider is not supported.
+
 `Fluwx` is good but not God. You'd better read [official documents](https://developers.weixin.qq.com/doc/oplatform/Mobile_App/Resource_Center_Homepage.html) before
 integrating `Fluwx`. Then you'll understand how to generate Android signature, what's universal link for iOS, how to add URL schema for iOS and so on.
 

README_CN.md

@@ -10,9 +10,6 @@
 [微信原生SDK ](https://developers.weixin.qq.com/doc/oplatform/Mobile_App/Resource_Center_Homepage.html).
 
 
-> Fluwx 4.0 强势开发中!
-
-
 > 加入我们的QQ群: 1003811176
 
 ![QQGroup](https://gitee.com/OpenFlutter/resoures-repository/raw/master/common/flutter.png)
@@ -31,6 +28,9 @@
 
 [迁移到V4指南](./doc/MIGRATE_TO_V4_CN.md)
 
+> 破坏性更新 ：从4.5.0起，当分享图片到微信时，如果不支持FileProvider方式分享，Fluwx不再尝试申请WRITE_EXTERNAL_STORAGE权限，这意味着你需要自己处理权限问题。
+
+
 `Fluwx` 可以做很多工作但不是所有. 在集成之前，最好读一下[官方文档](https://developers.weixin.qq.com/doc/oplatform/Mobile_App/Resource_Center_Homepage.html).  
  然后你才知道怎么生成签名，怎么使用universal link以及怎么添加URL schema等.
 

pubspec.yaml

 name: fluwx
 description: The capability of implementing WeChat SDKs in Flutter. With Fluwx, developers can use WeChatSDK easily, such as sharing, payment, lanuch mini program and etc.
-version: 4.4.10
+version: 4.5.0
 homepage: https://github.com/OpenFlutter/fluwx
 
 environment: