Async initialization for DateFormat

pkg/intl/data/dates/symbols/sq.json

Index: pkg/intl/data/dates/symbols/sq.json
===================================================================
--- pkg/intl/data/dates/symbols/sq.json	(revision 0)
+++ pkg/intl/data/dates/symbols/sq.json	(revision 0)
@@ -0,0 +1 @@
+{"DATEFORMATS":["EEEE, dd MMMM y","dd MMMM y","yyyy-MM-dd","yy-MM-dd"],"NARROWWEEKDAYS":["D","H","M","M","E","P","S"],"STANDALONESHORTMONTHS":["Jan","Shk","Mar","Pri","Maj","Qer","Kor","Gsh","Sht","Tet","Nën","Dhj"],"ERANAMES":["p.e.r.","n.e.r."],"FIRSTWEEKCUTOFFDAY":6,"NARROWMONTHS":["J","S","M","P","M","Q","K","G","S","T","N","D"],"STANDALONESHORTWEEKDAYS":["Die","Hën","Mar","Mër","Enj","Pre","Sht"],"FIRSTDAYOFWEEK":0,"STANDALONEWEEKDAYS":["e diel","e hënë","e martë","e mërkurë","e enjte","e premte","e shtunë"],"WEEKDAYS":["e diel","e hënë","e martë","e mërkurë","e enjte","e premte","e shtunë"],"QUARTERS":["Q1","Q2","Q3","Q4"],"ERAS":["p.e.r.","n.e.r."],"MONTHS":["janar","shkurt","mars","prill","maj","qershor","korrik","gusht","shtator","tetor","nëntor","dhjetor"],"TIMEFORMATS":["h.mm.ss.a zzzz","h.mm.ss.a z","h.mm.ss.a","h.mm.a"],"SHORTWEEKDAYS":["Die","Hën","Mar","Mër","Enj","Pre","Sht"],"SHORTQUARTERS":["Q1","Q2","Q3","Q4"],"WEEKENDRANGE":[5,6],"STANDALONENARROWWEEKDAYS":["D","H","M","M","E","P","S"],"AVAILABLEFORMATS":null,"NAME":"sq","AMPMS":["PD","MD"],"STANDALONEMONTHS":["janar","shkurt","mars","prill","maj","qershor","korrik","gusht","shtator","tetor","nëntor","dhjetor"],"SHORTMONTHS":["Jan","Shk","Mar","Pri","Maj","Qer","Kor","Gsh","Sht","Tet","Nën","Dhj"],"STANDALONENARROWMONTHS":["J","S","M","P","M","Q","K","G","S","T","N","D"]}