Enum return value schema is wrong

If a function returns Enum resulting schema is not wrapped but instead represented as enum itself.

Assemblies affected

Microsoft.OpenApi.OData 1.7.4

Steps to reproduce

I have a function that returns enum. It goes like this:

<Function Name="GetRemoteAccessStatus" IsBound="true">
      <ReturnType Type="RemoteAccessStatus" Nullable="false"/>
</Function>

<EnumType Name="RemoteAccessStatus">
      <Member Name="None" Value="0"/>
      <Member Name="Requested" Value="1"/>
      <Member Name="Active" Value="2"/>
</EnumType>

Expected result

In the resulting schema I want to see something like this:

      schema:
        type: object
        properties:
          value:
              anyOf:
                  - $ref: '#/components/schemas/RemoteAccessStatus'

Actual result

Actually I get (skipped value):

      schema:
        $ref: '#/components/schemas/Pbx.RemoteAccessStatus'

Additional information

I thinks the issue is in OpenApiResponseGenerator.cs where for collection and primitive types it wraps the responses but not for Enum

Start in OpenApiResponseGenerator.cs and reproduce the function response using the provided OData CSDL. Compare how collection and primitive return types are wrapped with the enum path, then verify that the generated schema uses an object with a value property referencing RemoteAccessStatus.