Add show 0 days feature in graphing about lasttime HOT 2 CLOSED

One solution for this may be to utilize the structure that is utilized in halflife timer. That would be, instead of a List (or whatever it may be in this project, I can't remember the specifics of this particular algorithm currently), I could implement a HashMap<LocalDateTime, Float>, then inserting 0 entries for the days that have no specific values while iterating through each day within the range. Maybe this would be better with an object that just specifically holds a date, I'm not exactly sure. It would probably be easiest to just use whatever kind of object I've specified already to index by in the algorithm, and I'm pretty sure that these are LocalDateTimes at this point, with the time parameters all zeroed out.

from lasttime.

Day constrained view already does this.

from lasttime.