* Support rwlock
* Fix typo, ENABLE_SESSION_CACHE_ROW_LOCK with TITAN_SESSION_CACHE
* Implement read lock
- Use read lock for the SessionCache
- Don't copy the
* TLS 1.3: Don't push ticket to cache if we don't retrieve from it
* Detect rwlock support with PTHREAD_RWLOCK_INITIALIZER
* Implement explicit rwlocks
- Mutex's still necessary for signals. Implement explicit rwlocks and we can migrate critical mutexs to rwlocks when necessary.
* Remove WOLFSSL_USE_RWLOCK guard around mutex condLock
* condLock not necessary after all
* Use configure.ac to check for pthread_rwlock_destroy support
* Can't include config.h in wc_port.h as that breaks make distcheck
* Check for pthread_rwlock_t to determine if rwlock is available
* Code review
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Co-authored-by: Juliusz Sosinowicz <juliusz@wolfssl.com>