v3/master
Removed usage of pthreads and replaced with std C++ features - Replaced pthread_mutex_t in modsecurity::operators::Pm with std::mutex - Replaced pthread's thread usage in reading_logs_via_rule_message example with std::thread. - Simplified and modernized C++ code. - Removed unnecessary includes of pthread.h
Renames examples/multithread_c to multiprocess_c
Fix cppcheck error in example multi.c