new: dev: Enable extraction of exact local socket addresses

Enable extracting the exact address/port that a local wildcard/TCP socket is bound to, improving the accuracy of dnstap logging and providing more information in debug logs produced by system tests.  Since this requires issuing an extra system call on some hot paths, this new feature is only enabled when the ``ISC_SOCKET_DETAILS`` preprocessor macro is set at compile time.

Closes #4344

Merge branch '4344-enable-extraction-of-exact-local-socket-addresses' into 'main'

See merge request isc-projects/bind9!8348