Method running

src/jrd/ThreadCollect.h:97–102

put thread into completion wait queue when it starts running

		// put thread into completion wait queue when it starts running
		void running(Thread&& thd)
		{
			Firebird::MutexLockGuard g(threadsMutex, FB_FUNCTION);

			threads.push_back(Thrd(std::move(thd), false));
		}

		void houseKeeping()
		{