Added a working implementation of calendar that fills in the important fields (year, month, day, hour, minute, second) for the Gregorian calendar. Specifically, it fills in YEAR, MONTH, DAY_OF_MONTH, HOUR_OF_DAY, MINUTE, and SECOND.
Added a working implementation of calendar that fills in the important
fields (year, month, day, hour, minute, second) for the Gregorian calendar.
Specifically, it fills in YEAR, MONTH, DAY_OF_MONTH, HOUR_OF_DAY, MINUTE,
and SECOND.

bigfatbrowncat/avian-pack.avian,getlantern/avian,joshuawarner32/avian,bgould/avian,badlogic/avian,ucdseniordesign/avian,MaartenR/avian,bigfatbrowncat/avian-pack.avian,joshuawarner32/avian,lostdj/avian,joshuawarner32/avian,ucdseniordesign/avian,marcinolawski/avian,dicej/avian,bgould/avian,joshuawarner32/avian,minor-jason/avian,marcinolawski/avian,dicej/avian,lwahlmeier/avian,marcinolawski/avian,minor-jason/avian,getlantern/avian,ucdseniordesign/avian,marcinolawski/avian,minor-jason/avian,lostdj/avian,minor-jason/avian,MaartenR/avian,bigfatbrowncat/avian-pack.avian,getlantern/avian,bgould/avian,lwahlmeier/avian,lostdj/avian,getlantern/avian,badlogic/avian,lostdj/avian,bgould/avian,ucdseniordesign/avian,MaartenR/avian,badlogic/avian,bigfatbrowncat/avian-pack.avian,MaartenR/avian,lwahlmeier/avian,lwahlmeier/avian,dicej/avian,dicej/avian,badlogic/avian