[OpenTK] Use win7 runtime rather than win

deps/OpenTK/Xenko.OpenTK.nuspec

@@ -2,7 +2,7 @@
 <package xmlns="http://schemas.microsoft.com/packaging/2013/05/nuspec.xsd">
   <metadata>
     <id>Xenko.OpenTK</id>
-    <version>1.0.0</version>
+    <version>1.0.1</version>
     <authors>Xenko contributors and OpenTK team</authors>
     <owners>Xenko contributors and OpenTK team</owners>
     <requireLicenseAcceptance>false</requireLicenseAcceptance>
@@ -11,7 +11,7 @@
 
   <files>
     <file src="OpenTK.dll" target="ref\net45" />
-    <file src="OpenTK.dll" target="runtimes\win\lib\net45" />
+    <file src="OpenTK.dll" target="runtimes\win7\lib\net45" />
 	<file src="Linux\OpenTK.dll" target="lib\netstandard2.0" />
 	<file src="Android\OpenTK-1.1.dll" target="lib\monoandroid50" />
 	<file src="iOS\OpenTK-1.1.dll" target="lib\xamarinios10" />

sources/engine/Xenko.Graphics/Xenko.Graphics.csproj

@@ -195,7 +195,7 @@
     <PackageReference Include="SharpDX.Direct3D11" Version="4.0.1" Condition="'$(TargetFramework)' == 'net45' Or '$(TargetFramework)' == 'uap10.0'" />
     <PackageReference Include="SharpDX.Direct3D12" Version="4.0.1" Condition="'$(TargetFramework)' == 'net45'" />
     <PackageReference Include="SharpDX.D3DCompiler" Version="4.0.1" Condition="'$(TargetFramework)' == 'net45' Or '$(TargetFramework)' == 'uap10.0'" />
-    <PackageReference Include="Xenko.OpenTK" Version="1.0.0" Condition="'$(TargetFramework)' == 'net45' Or '$(TargetFramework)' == 'xamarinios10' Or '$(TargetFramework)' == 'monoandroid50' Or '$(TargetFramework)' == 'netstandard2.0'" />
+    <PackageReference Include="Xenko.OpenTK" Version="1.0.1" Condition="'$(TargetFramework)' == 'net45' Or '$(TargetFramework)' == 'xamarinios10' Or '$(TargetFramework)' == 'monoandroid50' Or '$(TargetFramework)' == 'netstandard2.0'" />
   </ItemGroup>
   <ItemGroup>
     <WCFMetadata Include="Service References\" />