Giant Version Update

1.Records CRUD operation
1.1 Rename can face different unusual operations
1.2 when Search its very fluencty
2.Compose the layout for all screens, such as main, setting, file
manager, etc…
3.Build a media recorder to record voice and sound according to user
preference(Singleton)
4.Build a media player to replay the records(Singleton)
5.Enable the process of recording in background(MVC pattern)
6.Automatically detect the ejection and re-mount of SD cards
7.Streaming the media contents smoothly(Asynchronous)