PlayerNames: Change player/team-num on NamesScreen. TODO: Theme-stuff and remove options from config screen.

VocaluxeLib/PartyModes/IPartyMode.cs

@@ -101,6 +101,8 @@ namespace VocaluxeLib.PartyModes
         int GetMinPlayer();
         int GetMaxTeams();
         int GetMinTeams();
+        int GetMinPlayerPerTeam();
+        int GetMaxPlayerPerTeam();
         int GetMaxNumRounds();
         string GetFolder();
         void SetFolder(string folder);