delete"ColonyCountV2.0" package

Signed-off-by: r02525054 <r02525054@ntu.edu.tw>
1. add json library
2. FragmentHome: 將server端傳來的response改以json的方式接收並parse出資料庫的data

Signed-off-by: r02525054 <r02525054@ntu.edu.tw>