Add partymode path as constructor param

PartyModes/PartyModeChallenge/CPartyModeChallenge.cs

@@ -158,7 +158,8 @@ namespace VocaluxeLib.PartyModes.Challenge
         private SData _GameData;
         private EStage _Stage;
 
-        public CPartyModeChallenge()
+        public CPartyModeChallenge(string folder)
+            : base(folder)
         {
             _ScreenSongOptions.Selection.RandomOnly = false;
             _ScreenSongOptions.Selection.PartyMode = true;

PartyModes/PartyModeChallengeMedley/CPartyModeChallengeMedley.cs

@@ -163,7 +163,8 @@ namespace VocaluxeLib.PartyModes.ChallengeMedley
         private SData _GameData;
         private EStage _Stage;
 
-        public CPartyModeChallengeMedley()
+        public CPartyModeChallengeMedley(string folder)
+            : base(folder)
         {
             _ScreenSongOptions.Selection.RandomOnly = false;
             _ScreenSongOptions.Selection.PartyMode = true;

PartyModes/PartyModeTicTacToe/CPartyModeTicTacToe.cs

@@ -180,7 +180,8 @@ namespace VocaluxeLib.PartyModes.TicTacToe
         private SData _GameData;
         private EStage _Stage;
 
-        public CPartyModeTicTacToe()
+        public CPartyModeTicTacToe(string folder)
+            : base(folder)
         {
             _ScreenSongOptions.Selection.RandomOnly = false;
             _ScreenSongOptions.Selection.PartyMode = true;