Add CSerializedNetMsg::Copy() helper

This makes code that uses the helper less verbose.

Moreover, this makes net_processing C++20 compliant. Otherwise, it would
lead to a compile error (see below). C++20 disables aggregate
initialization when any constructor is declared. See
http://open-std.org/JTC1/SC22/WG21/docs/papers/2018/p1008r1.pdf

net_processing.cpp:1627:42: error: no matching constructor for initialization of 'CSerializedNetMsg'
            m_connman.PushMessage(pnode, CSerializedNetMsg{ser_cmpctblock.data, ser_cmpctblock.m_type});
                                         ^                ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

0 files changed, 0 insertions, 0 deletions