Hide Rubberduck from COM except for explicitly whitelisted classes

Author: Vogel612

Rubberduck.Main/Properties/AssemblyInfo.cs

@@ -6,4 +6,5 @@
 [assembly: InternalsVisibleTo("RubberduckTests")]
 
 // The following GUID is for the ID of the typelib if this project is exposed to COM
-[assembly: Guid(RubberduckGuid.RubberduckTypeLibGuid)]
+[assembly: Guid(RubberduckGuid.RubberduckTypeLibGuid)]
+[assembly: ComVisible(false)]