Add blankspace bug fix

Add blankspace bug fix

Add finalized version

Edit auto-save

Did not implement save properly before.

I had 2 different lists (one for the current iteration of tasks, and one that was saved in my file), but I could not edit (mark, unmark, delete) the ones that were in the file. Only my current task list was editable.

I made the two list one and the same using one ArrayList tasklist for all tasks.

Add CodeQuality

Fixed and resolved comments left by peer PR review..
Deleted dead code (unused classes such as UI, MainWindow, Main, etc.).
Replaced magic Strings with named Final constants.

Add A-Assertions

Add D-Contacts

Add new classes Contacts, ContactsList, and ContactsParser.
Contacts: Key fields and features of a contact information to note
ContactsList: Organizes list of contacts
ContactsParser: Parses contact commands to contactlist

Add GUI

Add GUI

Add Coding Standards