Remove all uses of the Cs Package now that we don't need it anymore

LuaCs Settings no longer uses LuaCsConfig
Cs Package is no longer is used for enabling CSharp Scripting (except for dedicated server, to not make those people confused)
Added popups for when you have CSharp mods enabled but don't have CSharp enabled when going to singleplayer/multiplayer

Barotrauma/BarotraumaClient/ClientSource/GameSession/GameModes/Tutorials/Tutorial.cs

@@ -179,7 +179,7 @@ namespace Barotrauma.Tutorials
 
         public void Start()
         {
-            GameMain.LuaCs.Initialize();
+            GameMain.LuaCs.CheckInitialize();
 
             GameMain.Instance.ShowLoading(Loading());
             ObjectiveManager.ResetObjectives();