split code into Scintilla_iface

Author: kbilsted

Demo Plugin/NppManagedPluginDemo/NppManagedPluginDemo.VS2015.csproj

@@ -57,6 +57,9 @@
     <Compile Include="..\..\Visual Studio Project Template C#\Integration\Msgs_h.cs">
       <Link>Integration\Msgs_h.cs</Link>
     </Compile>
+    <Compile Include="..\..\Visual Studio Project Template C#\Integration\Scintilla_iface.cs">
+      <Link>Integration\Scintilla_iface.cs</Link>
+    </Compile>
     <Compile Include="..\..\Visual Studio Project Template C#\NppPluginNETBase.cs">
       <Link>NppPluginNETBase.cs</Link>
     </Compile>

Visual Studio Project Template C#/$projectname$.csproj

@@ -52,6 +52,7 @@
     <Compile Include="NppPluginNETHelper.cs" />
     <Compile Include="Integration\Docking_h.cs" />
     <Compile Include="Integration\MenuCmdID_h.cs" />
+    <Compile Include="Integration\Scintilla_iface.cs" />
     <Compile Include="Integration\Msgs_h.cs" />
     <Compile Include="Properties\AssemblyInfo.cs" />
     <Compile Include="Properties\Resources.Designer.cs">