WIP: substitutions

src/main/java/nl/connectedit/swiss/service/TournamentPlayService.java

@@ -183,6 +183,10 @@ public class TournamentPlayService {
     }
   }
 
+  public Tournament substitutePlayer(Tournament tournament, Long playerId, Long substituteId) {
+    return tournament;
+  }
+
   private static class ConflictInDrawException extends RuntimeException {}
 
   private List<Match> tryMatches(List<Team> remainingTeams, Group group) {