Update ICU to 58.1

source/data/translit/Latn_Thaa.txt

Index: source/data/translit/Latn_Thaa.txt
diff --git a/source/data/translit/Latin_Thaana.txt b/source/data/translit/Latn_Thaa.txt
similarity index 95%
rename from source/data/translit/Latin_Thaana.txt
rename to source/data/translit/Latn_Thaa.txt
index f2fa68344712a37c7a2867428cc0f74661476029..15a437772643259b37f9b68b75155c3e88e76d56 100644
--- a/source/data/translit/Latin_Thaana.txt
+++ b/source/data/translit/Latn_Thaa.txt
@@ -1,12 +1,10 @@
-# ***************************************************************************
-# *
-# *  Copyright (C) 2004-2015, International Business Machines
-# *  Corporation; Unicode, Inc.; and others.  All Rights Reserved.
-# *
-# ***************************************************************************
-# File: Latin_Thaana.txt
-# Generated from CLDR 
+# © 2016 and later: Unicode, Inc. and others.
+# License & terms of use: http://www.unicode.org/copyright.html#License
 #
+# File: Latn_Thaa.txt
+# Generated from CLDR
+#
+
 tta ↔ ޘ\u07A6 ;
 ḥa ↔ ޙ\u07A6 ;
 kha ↔ ޚ\u07A6 ;
@@ -438,3 +436,4 @@ e ↔ \u07AC ;
 o ↔ \u07AE ;
 ō ↔ \u07AF ;
 ← \u07B0 ;
+