Scriptloading overhaul (#163)

* - Added option to RunConfig.cs for mods to compile with non-publicized assemblies.
- Added default values attrib to RunConfig.cs
- Added thread sleeping to CsPackageManager.Dispose() to give time before generating a strong-ref to check acl unload status.

* - Added PrintWarning to ModUtils.cs
- Made previously unloaded ACLs warning only.
- Made plugins unload after lua script disposal.
- Small code cleanups.
- Cleared acl record references on unloading.
- Made ACL unload run via event hook.

* Made non-pub asm compilation name the same long-a** name in XML, as per Evil's request.

Barotrauma/BarotraumaShared/SharedSource/LuaCs/Plugins/MemoryFileAssemblyContextLoader.cs

@@ -34,6 +34,7 @@ public class MemoryFileAssemblyContextLoader : AssemblyLoadContext
     public MemoryFileAssemblyContextLoader(AssemblyManager assemblyManager) : base(isCollectible: true)
     {
         this._assemblyManager = assemblyManager;
+        base.Unloading += OnUnload;
     }
     
 
@@ -278,10 +279,11 @@ public class MemoryFileAssemblyContextLoader : AssemblyLoadContext
     }
     
 
-    public new void Unload()
+    private void OnUnload(AssemblyLoadContext alc)
     {
         CompiledAssembly = null;
         CompiledAssemblyImage = null;
-        base.Unload();
+        _dependencyResolvers.Clear();
+        base.Unloading -= OnUnload;
     }
 }