macOS support

[budrus]

Brief feature description

Having the possibility to use iceoryx on macOS

Detailed information

Needed for ROS2 tier 1 support ROS2 Tiers

[marthtz]

Tasks for macOS support:

• [ ] ACL needs to be adapted to macOS
• [x] Semaphore sem_timedwait() not available and needs to be created
• [ ] Implement new OS timer based on "dispatch source"
• [ ] Replace message queues with socket communication
• [ ] Replace or find appropriate RT library if necessary
• [x] Modify pthread_setname_np() calls
• [x] Resolve type conflicts for cxx::align in
  • requiredManagementMemorySize()
  • requiredManagementMemorySize()
  • requiredManagementMemorySize()
  • Allocator::allocate()
• [x] Resolve type conflict for gid_t in PosixUser::getGroups()
• [x] Resolve type conflict for wprintw() in printProcessIntrospectionData()

[budrus]

I guess we start without acl or a replacement for it. Having different access groups on macOS is low prio

[elfenpiff]

Mac OS works!