Add fix for Yosumin. (#296)

Author: UsernamesAreNotMyThing

gamefixes-steam/23300.py

@@ -0,0 +1,8 @@
+"""Yosumin"""
+
+from protonfixes import util
+
+
+def main() -> None:
+    """Works around a Wine bug causing the game to crash."""
+    util.protontricks('d3dx9')