Update VFE-Classical compat for v2.05 API changes (#544)

SenatorQuests.GenerateQuestFor signature changed from
(SenatorInfo, Faction) to (List<QuestScriptDef>, Slate, SenatorInfo, Faction).
Updated SyncedQuestButton to use GetValidQuestsFrom and the new signature.
Updated VFEC.dll reference and added Publicize for private member access.

Author: sviyh

References/VFEC.dll

@@ -1 +1 @@
-1D3B8B299E2720EF1A58E0DC172CDBF46A90F78D
+F171507DFBE7291770E8B4BE2DBB8A953177A723

References/VFEC.txt

@@ -41,5 +41,6 @@
 
   <ItemGroup>
     <Publicize Include="Assembly-CSharp" />
+    <Publicize Include="VFEC" />
   </ItemGroup>
 </Project>

Source_Referenced/Multiplayer_Compat_Referenced.csproj

@@ -6,6 +6,7 @@
 using Multiplayer.API;
 using RimWorld;
 using RimWorld.Planet;
+using RimWorld.QuestGen;
 using UnityEngine;
 using Verse;
 using VFEC;
@@ -142,9 +143,13 @@ private static void SyncedQuestButton(int senatorDataIndex)
             if (canTakeQuest)
             {
                 var senatorInfo = WorldComponent_Senators.Instance.InfoFor(info.Pawn, dialog.Faction);
-                info.Quest = (senatorInfo.Quest = SenatorQuests.GenerateQuestFor(senatorInfo, dialog.Faction));
-                Find.QuestManager.Add(senatorInfo.Quest);
-                QuestUtility.SendLetterQuestAvailable(senatorInfo.Quest);
+                var quests = SenatorQuests.GetValidQuestsFrom(info.Pawn, out var slate);
+                if (quests.Any())
+                {
+                    info.Quest = (senatorInfo.Quest = SenatorQuests.GenerateQuestFor(quests, slate, senatorInfo, dialog.Faction));
+                    Find.QuestManager.Add(senatorInfo.Quest);
+                    QuestUtility.SendLetterQuestAvailable(senatorInfo.Quest);
+                }
             }
             else
                 Messages.Message("VFEC.UI.AlreadyQuest".Translate(), MessageTypeDefOf.RejectInput, false);