first pass of working features

[jrutishauser]

• add items to the task list works
• remove items from task list works
• the counter of items that need to be completed works

work on,

• still no way to complete tasks.
• the plethora of other details in deliverables

[jrutishauser]

:+1:

[eklemen]

:+1:

[mfees]

:+1: