Ứng dụng ghi chú

Simple note application functionality
- Notes list screen
o Display list of notes (title, modification time, tag)
o Add / delete / edit / display 1 note.
o Search by tag
o Search by series
- Screen details notes
- Sort notes by time
- Display the editing time (day, month, year, hour, minute, second)
- Tag: user can type any tag.
- All notes are stored on the device (delete apps and reinstall will lose all notes).