[FR] Progress indicator

[sudo-saif]

A progress indicator to show the progress of subtasks done. A circle ⭕ around the task color, it shows the current progress of the task's subtasks, i.e it may show half a circle for 50% complete. Another way is to add (Number / Number) i.e for 5 subtasks done of 10 tasks it would show (5/10) Where 5 = Subtasks done 10 = Total subtasks in a task

This feature can be applied to subtasks progress under a task Or tasks under a list (indicators show besides the list name)