Added recent Erlang versions

I added the information for two more recent versions of Erlang that are
available.  18.2 and 18.2.1

Author: Onorio Catenacci

erlang.csv

@@ -1,7 +1,9 @@
 version_otp,version_erts,url_win32,url_win64
+18.2.1,7.2.1,http://erlang.org/download/otp_win32_18.2.1.exe,http://erlang.org/download/otp_win64_18.2.1.exe
+18.2,7.2,http://erlang.org/download/otp_win32_18.2.exe,http://erlang.org/download/otp_win64_18.2.exe
 18.1,7.1,http://www.erlang.org/download/otp_win32_18.1.exe,http://www.erlang.org/download/otp_win64_18.1.exe
 18.0,7.0,http://www.erlang.org/download/otp_win32_18.0.exe,http://www.erlang.org/download/otp_win64_18.0.exe
 17.5,6.4,http://www.erlang.org/download/otp_win32_17.5.exe,http://www.erlang.org/download/otp_win64_17.5.exe
 17.4,6.3,http://www.erlang.org/download/otp_win32_17.4.exe,http://www.erlang.org/download/otp_win64_17.4.exe
 17.3,6.2,http://www.erlang.org/download/otp_win32_17.3.exe,http://www.erlang.org/download/otp_win64_17.3.exe
-17,6.0,http://www.erlang.org/download/otp_win32_17.0.exe,http://www.erlang.org/download/otp_win64_17.0.exe
+17,6.0,http://www.erlang.org/download/otp_win32_17.0.exe,http://www.erlang.org/download/otp_win64_17.0.exe