Added .editorconfig files to the Aga.Controls and OxyPlot projects.

External/Aga.Controls/.editorconfig

@@ -0,0 +1,7 @@
+root = true
+
+[*]
+end_of_line = crlf
+insert_final_newline = true
+indent_style = space
+indent_size = 4

External/Aga.Controls/Aga.Controls.csproj

@@ -229,6 +229,7 @@
   </ItemGroup>
   <ItemGroup>
     <Content Include="Resources\loading_icon" />
+    <None Include=".editorconfig" />
     <None Include="Tree\ClassDiagram.cd" />
     <None Include="Tree\NodeControls\ClassDiagram.cd" />
     <Content Include="Resources\unknown.bmp" />

External/OxyPlot/OxyPlot.WindowsForms/.editorconfig

@@ -0,0 +1,7 @@
+root = true
+
+[*]
+end_of_line = crlf
+insert_final_newline = true
+indent_style = space
+indent_size = 4

External/OxyPlot/OxyPlot.WindowsForms/OxyPlot.WindowsForms.csproj

@@ -70,6 +70,9 @@
       <Name>OxyPlot</Name>
     </ProjectReference>
   </ItemGroup>
+  <ItemGroup>
+    <None Include=".editorconfig" />
+  </ItemGroup>
   <Import Project="$(MSBuildToolsPath)\Microsoft.CSharp.targets" />
   <!-- To modify your build process, add your task inside one of the targets below and uncomment it. 
        Other similar extension points exist, see Microsoft.Common.targets.

External/OxyPlot/OxyPlot/.editorconfig

@@ -0,0 +1,7 @@
+root = true
+
+[*]
+end_of_line = crlf
+insert_final_newline = true
+indent_style = space
+indent_size = 4

External/OxyPlot/OxyPlot/OxyPlot.csproj

@@ -221,6 +221,7 @@
     <Compile Include="Foundation\XmlWriterBase.cs" />
   </ItemGroup>
   <ItemGroup>
+    <None Include=".editorconfig" />
     <None Include="ClassDiagrams\Series.cd" />
     <None Include="ClassDiagrams\PlotModel.cd" />
     <None Include="ClassDiagrams\Reporting.cd" />