ConfirmPrompt will prompt to user for yes or no.

CreateDatabase create folder and the file to save data.

GetHomeDir returns homedir.

ReadTasks : read data.

RemoveDuplicate removes duplicate from slice.

RemoveTask removes todo from list.

SaveTasks : save data.

SortSlice sort arrays.

DatabaseFile is the db file.

Task : structure.

ByPri implements sort.Interface for []Item base on the priority & position field.