Keeping in sync between .NET and Go version

In order to make the language versions of Casbin always integrated. We always try to keep in sync between .NET and Go versions.

But it’s difficult for us to really update at the same time, we will use this doc to track the differences.

.NET version waiting

• "in" operator support: https://github.com/casbin/Casbin.NET/issues/197 (You can use the equivalent writing method of C#)
• KeyMatch5 build function: https://github.com/casbin/casbin/issues/909
• Prioritizing based on role and user hierarchy level: https://github.com/casbin/casbin/issues/831
• Load policy form array API: https://github.com/casbin/casbin/issues/886
• Ignore all policies when matcher doesn't contain any match related to policy: https://github.com/casbin/casbin/issues/917
• Refactor default role manager: https://github.com/casbin/casbin/pull/942
• Avoid to clear model when exception thrown in LoadPolicy in IAdapter: https://github.com/casbin/casbin/issues/791

Go version waiting

• Priority deny override models: https://github.com/casbin/Casbin.NET/issues/188