Support for Connect agent-local operations

[Walliee]

I arrived here while looking at spring-cloud-consul for Consul Connect support.

Before Connect support can be added there, the Consul Agent needs to be enhanced to add support for Connect agent-local operations.

Happy to contribute and add support for this. Please let me know.

[hadrabap]

Hello @Walliee,

I implemented Agent-local operations: https://github.com/hadrabap/consul-api/tree/feature/issue-207-224

Could you please take a look at it if it satisfies your needs?

Thanks a lot.

The branch also implements #224