[code-watcher] Add CodeWatcherMode option.

There are three option values:
- Disabled: module does nothing (wow).
- Remove: module removes matching messages and sends temporary message
          to instruct user what to do.
- Upload: module uploads detected code to configured Haste Server.

modules/CodeWatcher/CodeWatcher.csproj

@@ -12,4 +12,10 @@
     <ProjectReference Include="..\..\Core\Core.csproj" />
   </ItemGroup>
 
+  <ItemGroup>
+    <Folder Include="Dto\" />
+    <Folder Include="Service\" />
+    <Folder Include="Options\" />
+  </ItemGroup>
+
 </Project>