Roll Observatory packages and add a roll script

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

Index: intl/lib/src/data/dates/symbols/am.json
diff --git a/intl/lib/src/data/dates/symbols/am.json b/intl/lib/src/data/dates/symbols/am.json
deleted file mode 100644
index c1c18edf0a8530c2966934e12c67d4457711d4b4..0000000000000000000000000000000000000000
--- a/intl/lib/src/data/dates/symbols/am.json
+++ /dev/null
@@ -1 +0,0 @@
-{"NAME":"am","ERAS":["ዓ/ዓ","ዓ/ም"],"ERANAMES":["ዓመተ ዓለም","ዓመተ ምሕረት"],"NARROWMONTHS":["ጃ","ፌ","ማ","ኤ","ሜ","ጁ","ጁ","ኦ","ሴ","ኦ","ኖ","ዲ"],"STANDALONENARROWMONTHS":["ጃ","ፌ","ማ","ኤ","ሜ","ጁ","ጁ","ኦ","ሴ","ኦ","ኖ","ዲ"],"MONTHS":["ጃንዩወሪ","ፌብሩወሪ","ማርች","ኤፕሪል","ሜይ","ጁን","ጁላይ","ኦገስት","ሴፕቴምበር","ኦክተውበር","ኖቬምበር","ዲሴምበር"],"STANDALONEMONTHS":["ጃንዩወሪ","ፌብሩወሪ","ማርች","ኤፕሪል","ሜይ","ጁን","ጁላይ","ኦገስት","ሴፕቴምበር","ኦክቶበር","ኖቬምበር","ዲሴምበር"],"SHORTMONTHS":["ጃንዩ","ፌብሩ","ማርች","ኤፕሪ","ሜይ","ጁን","ጁላይ","ኦገስ","ሴፕቴ","ኦክተ","ኖቬም","ዲሴም"],"STANDALONESHORTMONTHS":["ጃንዩ","ፌብሩ","ማርች","ኤፕሪ","ሜይ","ጁን","ጁላይ","ኦገስ","ሴፕቴ","ኦክቶ","ኖቬም","ዲሴም"],"WEEKDAYS":["እሑድ","ሰኞ","ማክሰኞ","ረቡዕ","ሐሙስ","ዓርብ","ቅዳሜ"],"STANDALONEWEEKDAYS":["እሑድ","ሰኞ","ማክሰኞ","ረቡዕ","ሐሙስ","ዓርብ","ቅዳሜ"],"SHORTWEEKDAYS":["እሑድ","ሰኞ","ማክሰ","ረቡዕ","ሐሙስ","ዓርብ","ቅዳሜ"],"STANDALONESHORTWEEKDAYS":["እሑድ","ሰኞ","ማክሰ","ረቡዕ","ሐሙስ","ዓርብ","ቅዳሜ"],"NARROWWEEKDAYS":["እ","ሰ","ማ","ረ","ሐ","ዓ","ቅ"],"STANDALONENARROWWEEKDAYS":["እ","ሰ","ማ","ረ","ሐ","ዓ","ቅ"],"SHORTQUARTERS":["ሩብ1","ሩብ2","ሩብ3","ሩብ4"],"QUARTERS":["1ኛው ሩብ","ሁለተኛው ሩብ","3ኛው ሩብ","4ኛው ሩብ"],"AMPMS":["ጥዋት","ከሰዓት"],"DATEFORMATS":["EEEE, d MMMM y","d MMMM y","d MMM y","dd/MM/y"],"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}"]}