Added default icon for components of unexpected DeclarationType

Author: mansellan

Rubberduck.Core/Navigation/CodeExplorer/CodeExplorerComponentViewModel.cs

@@ -41,7 +41,11 @@ public CodeExplorerComponentViewModel(CodeExplorerItemViewModel parent, Declarat
             Parent = parent;
             Declaration = declaration;
             _projectsProvider = projectsProvider;
-            _icon = Icons[DeclarationType];
+            
+            _icon = Icons.ContainsKey(DeclarationType) 
+                ? Icons[DeclarationType]
+                : GetImageSource(resx.status_offline);
+
             Items = declarations.GroupBy(item => item.Scope).SelectMany(grouping =>
                             grouping.Where(item => item.ParentDeclaration != null
                                                 && item.ParentScope == declaration.Scope

Rubberduck.Core/Resources/status-offline.png

@@ -999,6 +999,7 @@
     <Content Include="Resources\document-block.png" />
     <Content Include="Resources\document-globe.png" />
     <Content Include="Resources\pencil-ruler.png" />
+    <Content Include="Resources\status-offline.png" />
     <Content Include="Resources\ui-scroll-pane-form.png" />
     <Content Include="Resources\ui-tab-content.png" />
     <Resource Include="Resources\Rubberduck.png" />

Rubberduck.Core/Rubberduck.Core.csproj

@@ -277,4 +277,7 @@
   <data name="ui_tab_content" type="System.Resources.ResXFileRef, System.Windows.Forms">
     <value>..\..\Resources\ui-tab-content.png;System.Drawing.Bitmap, System.Drawing, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a</value>
   </data>
+  <data name="status_offline" type="System.Resources.ResXFileRef, System.Windows.Forms">
+    <value>..\..\Resources\status-offline.png;System.Drawing.Bitmap, System.Drawing, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a</value>
+  </data>
 </root>