position plugin for Baidu Location SDK on Android

For some reason, the default positioning service on Android is unavailable or unusable in China.

Baidu provides a location sdk on Android, many developers use it.

More details in(in Chinese):

• Baidu Android Location SDK: http://developer.baidu.com/map/index.php?title=android-locsdk
• Download: http://developer.baidu.com/map/index.php?title=android-locsdk/geosdk-android-download (SDK and examples)
• Legal: http://developer.baidu.com/map/index.php?title=open/law
• Q&A: http://developer.baidu.com/map/index.php?title=open/question