Downgraded embedded asio to 1.14.1

Asio versions higher or equal than 1.16.1 require
OpenSSL 1.0.2 or higher. However, some old platforms still in use
have older OpenSSL libraries.

Fixed incompatibility by downgrading embedded asio to
version 1.14.1.

asio/asio.hpp

@@ -2,7 +2,7 @@
 // asio.hpp
 // ~~~~~~~~
 //
-// Copyright (c) 2003-2022 Christopher M. Kohlhoff (chris at kohlhoff dot com)
+// Copyright (c) 2003-2019 Christopher M. Kohlhoff (chris at kohlhoff dot com)
 //
 // Distributed under the Boost Software License, Version 1.0. (See accompanying
 // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
@@ -17,88 +17,45 @@
 
 #include "asio/associated_allocator.hpp"
 #include "asio/associated_executor.hpp"
-#include "asio/associated_cancellation_slot.hpp"
-#include "asio/associator.hpp"
 #include "asio/async_result.hpp"
 #include "asio/awaitable.hpp"
 #include "asio/basic_datagram_socket.hpp"
 #include "asio/basic_deadline_timer.hpp"
-#include "asio/basic_file.hpp"
 #include "asio/basic_io_object.hpp"
-#include "asio/basic_random_access_file.hpp"
 #include "asio/basic_raw_socket.hpp"
-#include "asio/basic_readable_pipe.hpp"
 #include "asio/basic_seq_packet_socket.hpp"
 #include "asio/basic_serial_port.hpp"
 #include "asio/basic_signal_set.hpp"
 #include "asio/basic_socket.hpp"
 #include "asio/basic_socket_acceptor.hpp"
 #include "asio/basic_socket_iostream.hpp"
 #include "asio/basic_socket_streambuf.hpp"
-#include "asio/basic_stream_file.hpp"
 #include "asio/basic_stream_socket.hpp"
 #include "asio/basic_streambuf.hpp"
 #include "asio/basic_waitable_timer.hpp"
-#include "asio/basic_writable_pipe.hpp"
-#include "asio/bind_allocator.hpp"
-#include "asio/bind_cancellation_slot.hpp"
 #include "asio/bind_executor.hpp"
 #include "asio/buffer.hpp"
-#include "asio/buffer_registration.hpp"
 #include "asio/buffered_read_stream_fwd.hpp"
 #include "asio/buffered_read_stream.hpp"
 #include "asio/buffered_stream_fwd.hpp"
 #include "asio/buffered_stream.hpp"
 #include "asio/buffered_write_stream_fwd.hpp"
 #include "asio/buffered_write_stream.hpp"
 #include "asio/buffers_iterator.hpp"
-#include "asio/cancellation_signal.hpp"
-#include "asio/cancellation_state.hpp"
-#include "asio/cancellation_type.hpp"
 #include "asio/co_spawn.hpp"
 #include "asio/completion_condition.hpp"
 #include "asio/compose.hpp"
 #include "asio/connect.hpp"
-#include "asio/connect_pipe.hpp"
 #include "asio/coroutine.hpp"
 #include "asio/deadline_timer.hpp"
 #include "asio/defer.hpp"
 #include "asio/detached.hpp"
 #include "asio/dispatch.hpp"
 #include "asio/error.hpp"
 #include "asio/error_code.hpp"
-#include "asio/execution.hpp"
-#include "asio/execution/allocator.hpp"
-#include "asio/execution/any_executor.hpp"
-#include "asio/execution/blocking.hpp"
-#include "asio/execution/blocking_adaptation.hpp"
-#include "asio/execution/bulk_execute.hpp"
-#include "asio/execution/bulk_guarantee.hpp"
-#include "asio/execution/connect.hpp"
-#include "asio/execution/context.hpp"
-#include "asio/execution/context_as.hpp"
-#include "asio/execution/execute.hpp"
-#include "asio/execution/executor.hpp"
-#include "asio/execution/invocable_archetype.hpp"
-#include "asio/execution/mapping.hpp"
-#include "asio/execution/occupancy.hpp"
-#include "asio/execution/operation_state.hpp"
-#include "asio/execution/outstanding_work.hpp"
-#include "asio/execution/prefer_only.hpp"
-#include "asio/execution/receiver.hpp"
-#include "asio/execution/receiver_invocation_error.hpp"
-#include "asio/execution/relationship.hpp"
-#include "asio/execution/schedule.hpp"
-#include "asio/execution/scheduler.hpp"
-#include "asio/execution/sender.hpp"
-#include "asio/execution/set_done.hpp"
-#include "asio/execution/set_error.hpp"
-#include "asio/execution/set_value.hpp"
-#include "asio/execution/start.hpp"
 #include "asio/execution_context.hpp"
 #include "asio/executor.hpp"
 #include "asio/executor_work_guard.hpp"
-#include "asio/file_base.hpp"
 #include "asio/generic/basic_endpoint.hpp"
 #include "asio/generic/datagram_protocol.hpp"
 #include "asio/generic/raw_protocol.hpp"
@@ -136,15 +93,13 @@
 #include "asio/ip/udp.hpp"
 #include "asio/ip/unicast.hpp"
 #include "asio/ip/v6_only.hpp"
-#include "asio/is_applicable_property.hpp"
 #include "asio/is_executor.hpp"
 #include "asio/is_read_buffered.hpp"
 #include "asio/is_write_buffered.hpp"
 #include "asio/local/basic_endpoint.hpp"
 #include "asio/local/connect_pair.hpp"
 #include "asio/local/datagram_protocol.hpp"
 #include "asio/local/stream_protocol.hpp"
-#include "asio/multiple_exceptions.hpp"
 #include "asio/packaged_task.hpp"
 #include "asio/placeholders.hpp"
 #include "asio/posix/basic_descriptor.hpp"
@@ -153,26 +108,16 @@
 #include "asio/posix/descriptor_base.hpp"
 #include "asio/posix/stream_descriptor.hpp"
 #include "asio/post.hpp"
-#include "asio/prefer.hpp"
-#include "asio/query.hpp"
-#include "asio/random_access_file.hpp"
 #include "asio/read.hpp"
 #include "asio/read_at.hpp"
 #include "asio/read_until.hpp"
-#include "asio/readable_pipe.hpp"
-#include "asio/recycling_allocator.hpp"
 #include "asio/redirect_error.hpp"
-#include "asio/registered_buffer.hpp"
-#include "asio/require.hpp"
-#include "asio/require_concept.hpp"
 #include "asio/serial_port.hpp"
 #include "asio/serial_port_base.hpp"
 #include "asio/signal_set.hpp"
 #include "asio/socket_base.hpp"
-#include "asio/static_thread_pool.hpp"
 #include "asio/steady_timer.hpp"
 #include "asio/strand.hpp"
-#include "asio/stream_file.hpp"
 #include "asio/streambuf.hpp"
 #include "asio/system_context.hpp"
 #include "asio/system_error.hpp"
@@ -196,7 +141,6 @@
 #include "asio/windows/overlapped_ptr.hpp"
 #include "asio/windows/random_access_handle.hpp"
 #include "asio/windows/stream_handle.hpp"
-#include "asio/writable_pipe.hpp"
 #include "asio/write.hpp"
 #include "asio/write_at.hpp"