Derive clone for EndpointState types

[avtrujillo]

Currently, Client cannot properly derive clone, because none of the EndpointState types implement clone. For example, trying to use openidconnect's CoreClient in a context that requires it to be Clone produces the following error:

the trait bound openidconnect::EndpointSet: Clone is not satisfied
required for Client<EmptyAdditionalClaims, ..., ..., ..., ..., ..., ..., ..., ..., ..., ..., ..., ..., ..., ..., ..., ..., ..., ..., ..., ...> to implement Clone

[ramosbugs]

Thanks for the PR! This is an another unfortunate example of rust-lang/rust#26925.

The same issue applies to Client's derived Debug implementation. Would you mind adding Debug to those types as well?

[avtrujillo]

Would you mind adding Debug to those types as well?

Added. Thanks for the quick response!

[ramosbugs]

Thanks!