* chore: fix shadowed variable warning
"byte" is declared by a third-party UTP header
* refactor: tr_variantFromFile, tr_variantToFile take a string_view filename
* refactor: include <memory> when using shared_ptr or unique_ptr
* refactor: include <cstdio> iff we use it
* refactor: include <cstring> iff we use it
* refactor: include <cstdlib> iff we use it
* refactor: include <string_view> or <string> iff we use it
* refactor: include <array> iff we use it
* refactor: include <ctime> iff we use it
* refactor: include <cctype> iff we use it
* refactor: misc #include cleanups in libtransmission
* refactor: uninit vars in bandwidth.cc
* refactor: uninit vars in cache.cc
* refactor: uninit vars in fdlimit.cc
* refactor: uninit vars in inout.cc
* refactor: uninit vars in platform.cc
* refactor: uninit vars in log.cc
* refactor: uninit vars in tr-utp.cc
* refactor: uninit vars in stats.cc
* refactor: uninit vars in trevent.cc
* refactor: uninit vars in session-id.cc
* fixup! refactor: uninit vars in cache.cc
* refactor: uninit vars in upnp.cc
* refactor: uninit vars in file.cc
* refactor: uninit vars in tr-lpd.cc
* refactor: uninit vars in tr-udp.cc
Port libtransmission to C++. This PR doesn't refactor everything to c++.
Its code changes are only what was necessary to compile and link as c++.
See libtransmission/README.md for details on how to submit modernization
patches!
Co-authored-by: Mike Gelfand <mikedld@mikedld.com>
