Update README. Point to ::Troubleshooting:: and remove files long

deleted GH#156

README

@@ -1,31 +1,32 @@
 
 DBD::Oracle  --  an Oracle interface for Perl 5.
 
-   Copyright (c) 1994-2020  Tim Bunce, et. al.
+   Copyright (c) 1994-2023  Tim Bunce, et. al.
 
    See the COPYRIGHT section in the Oracle.pm file for terms.
    See also the MAINTAINER section in the Oracle.pm
 
    PLEASE READ THE ENTIRE README FILE CAREFULLY !
 
-   AND THEN READ ANY README.* FILES RELEVANT TO YOUR PLATFORM:
+   AND THEN READ ANY TROUBLESHOOTING POD FILES RELEVANT TO YOUR PLATFORM:
 
-        README.aix.txt - AIX
-        README.hpux.txt - HP-UX
-        README.java.txt - Java/thread problem on Solaris
-        README.macosx.txt - Mac OS/X
-        README.win32.txt - MS Windows
-        README.wingcc.txt - MS Windows using GCC
-        README.* - see if there's a file for your platform
+        DBD::Oracle::Troubleshooting - General Tips
+        DBD::Oracle::Troubleshooting::Aix - AIX
+        DBD::Oracle::Troubleshooting::Cygwin - MS Windows using GCC
+        DBD::Oracle::Troubleshooting::Hpux - HP-UX
+        DBD::Oracle::Troubleshooting::Linux - Linux
+        DBD::Oracle::Troubleshooting::Macos - Mac OS
+        DBD::Oracle::Troubleshooting::Sun - Sun
+        DBD::Oracle::Troubleshooting::Vms - OpenVMS
+        DBD::Oracle::Troubleshooting::Win32 - MS Windows (32bit)
+        DBD::Oracle::Troubleshooting::Win64 - MS Windows (64bit)
+        DBD::Oracle::Troubleshooting::* - see if there's a file for your platform
+
+        DBD::Oracle::Troubleshooting::java.txt - Java/thread problem on Solaris
 
    You may find these useful
 
         README.help.txt - Help and hints on build problems
-        README.sec.txt - Oracle security issues to be aware of
-        README.login.txt - Help on how to connect to Oracle
-        README.longs.txt - Help on handling LONGs
-        README.clients.txt - What Oracle client files you need installed
-
 
 *** QUICK START GUIDE:
 
@@ -258,12 +259,7 @@ Tim.
 Examples and other info:
 
 README.help.txt     -- READ IT FIRST IF YOU HAVE ANY PROBLEMS
-README.win32.txt    -- building DBD::Oracle under MS Windows
-README.wingcc.txt   -- building DBD::Oracle under MS Windows with gcc
-README.macosx.txt   -- building DBD::Oracle under MacOS X
-README.clients.txt  -- building/using DBD::Oracle on minimally configured system
-README.login.txt    -- help for login problems
-README.longs.txt    -- examples dealing with LONG types (blobs)
+DBD::Oracle::Troubleshooting::* -- Various platform specific info
 
 DBI 'home page': http://dbi.perl.org