Add visualizer for Windows::UI::Color (#1095)

Author: JohnTasler

natvis/cppwinrt.natvis

@@ -20,12 +20,15 @@
     <DisplayString Condition="this == 0">null</DisplayString>
   </Type>
   <!--Primitive type visualizers-->
+  <Type Name="winrt::Windows::UI::Color">
+    <DisplayString>#{A,nvoXb}{R,nvoXb}{G,nvoXb}{B,nvoXb}</DisplayString>
+  </Type>
   <Type Name="winrt::array_view&lt;*&gt;">
     <DisplayString>{{size = {m_size}, {m_data,[m_size]}}}</DisplayString>
     <Expand>
       <ArrayItems>
-          <Size>m_size</Size>
-          <ValuePointer>m_data</ValuePointer>
+        <Size>m_size</Size>
+        <ValuePointer>m_data</ValuePointer>
       </ArrayItems>
     </Expand>
   </Type>