- adds missing using following PR feedback

Signed-off-by: Vincent Biret <vibiret@microsoft.com>

Author: baywet

src/Microsoft.OpenApi.OData.Reader/Edm/ODataPathProvider.cs

@@ -9,6 +9,7 @@
 using System.Linq;
 using Microsoft.OData.Edm;
 using Microsoft.OData.Edm.Vocabularies;
+using Microsoft.OpenApi.OData.Common;
 using Microsoft.OpenApi.OData.Vocabulary.Capabilities;
 
 namespace Microsoft.OpenApi.OData.Edm