Scripts/ToC: Simplify the code for "A Tribute to Immortality" achievement

* also fixes the achievement being still awarded if players die indirectly during boss fights (Anub'arak adds, for example)

(cherry picked from commit 9838cbda1a44ca6e45d114a0c2facc71cb481d38)
Core/Zmq: Added 50ms wait in the Run() loop to get rid of excessive cpu usage

(cherry picked from commit cbb6ca03399b6288ddda3d37bb42558af8103649)