feat(jans-cedarling): implement loading types from other namespace

[olehbozhok]

Is your feature request related to a problem? Please describe.
We don't have support for loading types from other namespace

here is simplified example of schema

namespace Jans {
type Url = {"host": String, "path": String, "protocol": String};
type email_address = {"domain": String, "uid": String};
}

namespace MyNamespace {
entity Role;
entity User in [Role] = {"country": String, "email": Jans::email_address, "sub": String, "username": String};
}

Cedaring should load type from other namespace correctly.

Describe the solution you'd like
Extend current implementation.

Describe alternatives you've considered
-

Additional context
-