case 1:
	habit created today
		marked today
case 2:
	habit created yesterday
		not marked yesterday
		marked today
case 3:
	habit created yesterday
		not marked yesterday
		not marked today
case 4:
	habit created 5 days back
		habit marked on 2nd and 5th day
case 5:
	habit created 5 days back
		habit marked on 1st and 4th day
case 6:
	habit created 5 days back
		habit marked on 1st and 5th day
case 7:
	habit created 10 days back
		marked on 2nd day
case 8:
	habit created 10 days back
		marked on 5nd day
case 9:
	habit created 10 days back
		marked on 10th day
case 10:
	habit created 10 days back
		not marked till date

Algorithm:
Process Habits till updates
    if no update exist
        goto Fill dummy updates
    if only one update exist on created date
        add update
        goto Fill dummy updates
    if more updates exist
        fill gaps between each update and last update
Fill dummy updates
    if updates less than 7
        make updates array size as 7
    if updates more than 7 and last update not on today
        make updates till today