Spring Cloud config server client

[thiagolocatelli]

This is the pull request related to the issue #501, to include the configuration client for Spring Cloud config client.

[CLAassistant]

All committers have signed the CLA.

[graemerocher]

Thanks. I think we have to resolve the lack of tests before merging. But it looks like a good start

[graemerocher]

Sorry the wording on the CLA changed to fix a typo, could you sign again?

[thiagolocatelli]

Signed

[MichelSchudel]

@graemerocher you could use the tests in the sample project as a base for an integration test. It includes a mock spring cloud config server: https://github.com/thiagolocatelli/micronaut-spring-client/tree/master/spring-config-sample/src/test/java/com/github/thiagolocatelli

[graemerocher]

Thanks for the pointer

[graemerocher]

Merged with the documentation, improvements and a test (although test coverage could be improved). Thanks for the contribution bfcf63e

[thiagolocatelli]

Thank you @graemerocher