Roll Observatory packages and add a roll script

intl/lib/src/data/dates/symbols/br.json

Index: intl/lib/src/data/dates/symbols/br.json
diff --git a/intl/lib/src/data/dates/symbols/br.json b/intl/lib/src/data/dates/symbols/br.json
deleted file mode 100644
index ff3bd1157c353659712dbaaa22d5f6934e53f580..0000000000000000000000000000000000000000
--- a/intl/lib/src/data/dates/symbols/br.json
+++ /dev/null
@@ -1 +0,0 @@
-{"NAME":"br","ERAS":["BCE","CE"],"ERANAMES":["BCE","CE"],"NARROWMONTHS":["1","2","3","4","5","6","7","8","9","10","11","12"],"STANDALONENARROWMONTHS":["1","2","3","4","5","6","7","8","9","10","11","12"],"MONTHS":["Genver","Cʼhwevrer","Meurzh","Ebrel","Mae","Mezheven","Gouere","Eost","Gwengolo","Here","Du","Kerzu"],"STANDALONEMONTHS":["Genver","Cʼhwevrer","Meurzh","Ebrel","Mae","Mezheven","Gouere","Eost","Gwengolo","Here","Du","Kerzu"],"SHORTMONTHS":["Gen","Cʼhwe","Meur","Ebr","Mae","Mezh","Goue","Eost","Gwen","Here","Du","Ker"],"STANDALONESHORTMONTHS":["Gen","Cʼhwe","Meur","Ebr","Mae","Mezh","Goue","Eost","Gwen","Here","Du","Ker"],"WEEKDAYS":["Sul","Lun","Meurzh","Mercʼher","Yaou","Gwener","Sadorn"],"STANDALONEWEEKDAYS":["Sul","Lun","Meurzh","Mercʼher","Yaou","Gwener","Sadorn"],"SHORTWEEKDAYS":["sul","lun","meu.","mer.","yaou","gwe.","sad."],"STANDALONESHORTWEEKDAYS":["sul","lun","meu.","mer.","yaou","gwe.","sad."],"NARROWWEEKDAYS":["su","lu","mz","mc","ya","gw","sa"],"STANDALONENARROWWEEKDAYS":["su","lu","mz","mc","ya","gw","sa"],"SHORTQUARTERS":["Q1","Q2","Q3","Q4"],"QUARTERS":["Q1","Q2","Q3","Q4"],"AMPMS":["AM","PM"],"DATEFORMATS":["y MMMM d, EEEE","y MMMM d","y MMM d","y-MM-dd"],"TIMEFORMATS":["HH:mm:ss zzzz","HH:mm:ss z","HH:mm:ss","HH:mm"],"AVAILABLEFORMATS":null,"FIRSTDAYOFWEEK":0,"WEEKENDRANGE":[5,6],"FIRSTWEEKCUTOFFDAY":6,"DATETIMEFORMATS":["{1} {0}","{1} {0}","{1} {0}","{1} {0}"]}