Update iOS dependce to 4.4.2
Convert android kotlin code to java
Add DefaultDfuProgressListenerAdapter
- fix pod bug
- change dfu iOS dependens version
- this version has bug, do not use
- migrate to android x
- Down kotlin version to 1.2.71
- Update android kotlin version to 1.3.21
- Update com.android.tools.build:gradle to 3.3.1
- Finish iOS version
- Finish android version
- Init the package.