use unique_ptr instead of auto_ptr

[ClausKlein]

to prevent compile problems with c++17 std

[jwillemsen]

see comments

[ClausKlein]

Note: this is a first step only!

ACE_Auto_Basic_Array_Ptr or ACE_Auto_Array_Ptr still used in ace/:

./ACEXML/common/HttpCharStream.cpp
./ACEXML/common/URL_Addr.cpp
./ACEXML/common/XML_Codecs.cpp
./ACEXML/parser/parser/Parser.h
./Kokyu/Default_Dispatcher_Impl.h
./ace/Auto_Ptr.cpp
./ace/CDR_Stream.cpp
./ace/Configuration.cpp
./ace/DLL_Manager.cpp
./ace/Local_Memory_Pool.cpp
./ace/Local_Name_Space_T.cpp
./ace/Log_Record.cpp
./ace/OS_NS_unistd.cpp
./ace/Parse_Node.cpp
./ace/Process.cpp
./ace/Refcounted_Auto_Ptr.h
./ace/Remote_Name_Space.cpp
./ace/SOCK_SEQPACK_Association.cpp
./ace/Sock_Connect.cpp
./ace/TLI.cpp
./ace/UUID.cpp
./apps/JAWS/clients/Caching/Locator_Request_Reply.cpp
./apps/JAWS/server/JAWS_IO.cpp
./apps/gperf/src/Key_List.cpp
./examples/C++NPv2/Reactor_Logging_Server_Adapter.cpp
./examples/IPC_SAP/UPIPE_SAP/ex2.cpp
./examples/IPC_SAP/UPIPE_SAP/ex3.cpp
./examples/Reactor/TP_Reactor/client.cpp
./examples/Web_Crawler/HTTP_URL.cpp
./netsvcs/lib/Client_Logging_Handler.cpp
./netsvcs/lib/Name_Handler.cpp
./protocols/ace/HTBP/HTBP_Channel.cpp
./protocols/ace/HTBP/HTBP_ID_Requestor.cpp
./protocols/ace/HTBP/HTBP_Inside_Squid_Filter.cpp
./protocols/ace/HTBP/HTBP_Session.cpp
./protocols/ace/INet/BidirStreamBuffer.h
./protocols/ace/INet/BufferedStreamBuffer.h
./protocols/ace/INet/HTTP_BasicAuthentication.cpp
./protocols/ace/RMCast/Link.cpp
./tests/CDR_File_Test.cpp
./tests/CDR_Test.cpp
./tests/Codecs_Test.cpp
./tests/Conn_Test.cpp
./tests/Log_Msg_Test.cpp
./tests/Message_Queue_Test_Ex.cpp
./tests/Reactor_Fairness_Test.cpp
./tests/Reactor_Performance_Test.cpp
./tests/Reactor_Remove_Resume_Test.cpp
./tests/SString_Test.cpp

FIXME: ./ace/Svc_Conf_Lexer.cpp: ACE_Auto_Ptr X ## bufp (0); \

[jwillemsen]

See #2109