Update OData to support .NET Core 3.1

Enable global $count query option (even though it shouldn't be needed…

…). Related to dotnet#567.

Remove obsolete UseQualifiedOperationNames property

Update read me

Describe should be virtual

Add acceptance tests for action-level API version declarations

Include routes with API version route prefix

Fix IControllerConfiguration recursion. Fixes dotnet#313.

Copy matched RouteData to RouteContext. Fixes dotnet#176

Updated package information