[Gameplay] "Hero" temple for Ptolemaic Egyptians. Ptolemaic heroes trained from a new "Temple of Isis", along with a new tech pair: "Pharaonic Cult" vs. "Serapis Cult."
Patch by: @borg-
Accepted by: @real_tabasco_sauce, @wowgetoffyourcellphone
Supporting comments by: @chrstgtr
Differential revision: https://code.wildfiregames.com/D5169