Makes it so that expected_game_score.policy_value ignores actions with 0 probability.
Makes it so that expected_game_score.policy_value ignores actions with 0 probability.

PiperOrigin-RevId: 268023551
Change-Id: I789866a36d3af8986f94eb4ef01966e561bac1b7

deepmind/open_spiel,deepmind/open_spiel,deepmind/open_spiel,deepmind/open_spiel,deepmind/open_spiel,deepmind/open_spiel