* fix: url port parsing
- `tr_urlParse()` should fail if cannot parse port
- Avoid parsing scheme ports to numbers
- Port should not be parsed to a negative number
- Port should not be parsed to `0`
- Directly parse number string to `uint16_t`
* test: invalid port
* test: add TransmissionTest fixture that calls tr_lib_init()
* refactor: use std::call_once() in tr_lib_init()
* test: ensure quarks are sorted in RpcTest::sessionGet
* refactor: use ::libtransmission::test::TransmissionTest
prefer this over ::testing::Test to ensure tr_lib_init() is called once
* feat: accept ipv6 string in square brackets for `tr_address::from_string()`
* test: add test case for ipv6 string in square brackets
* fix: include square brackets in host component
According to RFC3986:
host = IP-literal / IPv4address / reg-name
IP-literal = "[" ( IPv6address / IPvFuture ) "]"
* fix: set ipv6-only socket before binding UDP socket
Will return EINVAL on Linux otherwise
* refactor: simplify code using `evutil` when binding TCP socket
* fix: do not set SO_REUSEADDR for listening sockets on Windows systems
Reason: https://stackoverflow.com/a/14388707/11390656
* fix: do not enclose ipv4 address string in square brackets
* Use imported CMake target for CURL
* Use imported CMake target for fmtlib
* Use imported CMake target for WideInteger
* Use imported CMake target for FastFloat
* Use imported CMake target for UtfCpp
* Use imported CMake target for Threads
* Use imported CMake target for Iconv
* Use imported CMake target for crypto backend
* Use imported CMake target for GTK
* Use imported CMake target for Qt
* Use imported CMake target for deflate
* Use imported CMake target for libevent
* Use imported CMake target for natpmp
* Use imported CMake target for miniupnpc
* Use imported CMake target for dht
* Use imported CMake target for psl
* Use imported CMake target for libutp
* Use imported CMake target for libb64
* Use include directories from libtransmission target
* refactor: make this variable const
* refactor: replace redundant type with auto
* refactor: use the nullptr literal
* refactor: replace declaration by structured binding declaration
