Roll Observatory packages and add a roll script

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

Index: intl/lib/src/data/dates/symbols/ur.json
diff --git a/intl/lib/src/data/dates/symbols/ur.json b/intl/lib/src/data/dates/symbols/ur.json
deleted file mode 100644
index 99406054dd69ef0eba5d256bc92bc56ba2fe936e..0000000000000000000000000000000000000000
--- a/intl/lib/src/data/dates/symbols/ur.json
+++ /dev/null
@@ -1 +0,0 @@
-{"NAME":"ur","ERAS":["ق م","عیسوی سن"],"ERANAMES":["قبل مسیح","عیسوی سن"],"NARROWMONTHS":["J","F","M","A","M","J","J","A","S","O","N","D"],"STANDALONENARROWMONTHS":["J","F","M","A","M","J","J","A","S","O","N","D"],"MONTHS":["جنوری","فروری","مارچ","اپریل","مئی","جون","جولائی","اگست","ستمبر","اکتوبر","نومبر","دسمبر"],"STANDALONEMONTHS":["جنوری","فروری","مارچ","اپریل","مئی","جون","جولائی","اگست","ستمبر","اکتوبر","نومبر","دسمبر"],"SHORTMONTHS":["جنوری","فروری","مارچ","اپریل","مئی","جون","جولائی","اگست","ستمبر","اکتوبر","نومبر","دسمبر"],"STANDALONESHORTMONTHS":["جنوری","فروری","مارچ","اپریل","مئی","جون","جولائی","اگست","ستمبر","اکتوبر","نومبر","دسمبر"],"WEEKDAYS":["اتوار","سوموار","منگل","بدھ","جمعرات","جمعہ","ہفتہ"],"STANDALONEWEEKDAYS":["اتوار","سوموار","منگل","بدھ","جمعرات","جمعہ","ہفتہ"],"SHORTWEEKDAYS":["اتوار","سوموار","منگل","بدھ","جمعرات","جمعہ","ہفتہ"],"STANDALONESHORTWEEKDAYS":["اتوار","سوموار","منگل","بدھ","جمعرات","جمعہ","ہفتہ"],"NARROWWEEKDAYS":["S","M","T","W","T","F","S"],"STANDALONENARROWWEEKDAYS":["S","M","T","W","T","F","S"],"SHORTQUARTERS":["پہلی سہ ماہی","دوسری سہ ماہی","تیسری سہ ماہی","چوتهی سہ ماہی"],"QUARTERS":["پہلی سہ ماہی","دوسری سہ ماہی","تیسری سہ ماہی","چوتهی سہ ماہی"],"AMPMS":["قبل دوپہر","بعد دوپہر"],"DATEFORMATS":["EEEE، d MMMM، y","d MMMM، y","d MMM، y","d/M/yy"],"TIMEFORMATS":["h:mm:ss a zzzz","h:mm:ss a z","h:mm:ss a","h:mm a"],"AVAILABLEFORMATS":null,"FIRSTDAYOFWEEK":6,"WEEKENDRANGE":[5,6],"FIRSTWEEKCUTOFFDAY":5,"DATETIMEFORMATS":["{1} {0}","{1} {0}","{1} {0}","{1} {0}"]}