Allow version 9.x of Newtonsoft.Json in nuspec

Author: Gonnagle

src/corelib/corelib.nuspec

@@ -15,7 +15,7 @@
     <tags>openstack</tags>
     <dependencies>
       <group targetFramework="4.5">
-        <dependency id="Newtonsoft.Json" version="[6.0.1,9.0)" />
+        <dependency id="Newtonsoft.Json" version="[6.0.1,10.0)" />
         <dependency id="Flurl.Http.Signed" version="[0.7.0, 0.8)" />
         <dependency id="Marvin.JsonPatch.Signed" version="[0.7.0]" />
       </group>