agent service and check endpoints cannot use ACL tokens

[mooneygr]

Agent Service and Check Register calls already handle ACL tokens: https://github.com/cablehead/python-consul/issues/73

However, the other commands, including deregister, do not take ACL tokens. It is therefore possible to register a service via this library, that you cannot remove, even with the correct ACL token.

This issue is similar to: https://github.com/cablehead/python-consul/issues/116