default boolean hasDatabaseUsers() {
        return true;
    }
Returns {@code true} if this {@link DbmsTypeDefault} uses authentication with
username and password and {@code false} otherwise. Some database managers
don't require authentication since they are only intended to be used for
tests or because security is handled at a different level.

@return  {@code true} if authentication is supported, otherwise
         {@code false}
runtime-parent/runtime-core/src/main/java/com/speedment/runtime/core/db/DbmsTypeDefault.java