Add missing OSMF eula in package

Author: kzu

src/Extensions.Grok/Extensions.Grok.csproj

@@ -25,6 +25,7 @@
 
   <ItemGroup>
     <Compile Include="..\Extensions\Extensions\ChatOptionsExtensions.cs" Link="Extensions\ChatOptionsExtensions.cs" />
+    <None Include="..\..\osmfeula.txt" Link="osmfeula.txt" PackagePath="OSMFEULA.txt" />
   </ItemGroup>
 
 </Project>