Do not try to compile the monitor on windows

src/main.cpp

@@ -104,7 +104,9 @@ int main() {
     TransportManager::init();
     BuddyManager::init();
     GroupManager::init();
+#ifndef _WIN32
     Monitor::init();
+#endif
     Database::open();
 
     switch (settings::EVENTMODE) {
@@ -123,7 +125,9 @@ int main() {
     shardServer = new CNShardServer(settings::SHARDPORT);
 
     shardThread = new std::thread(startShard, (CNShardServer*)shardServer);
+#ifndef _WIN32
     monitorThread = new std::thread(Monitor::start, nullptr);
+#endif
 
     loginServer.start();