Update example with verified endpoints

Add OpenAPI example for Minimal APIs

Support suppressing API version in generated URLs

Update versions and release notes

OData 5..0.0

Update release notes for 4.2.0 release

OData 5.0.0 RC 2

OData 5.0.0 RC 1

Update OData to support .NET Core 3.1

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

…). Related to dotnet#567.