'sdk-ify' the distribute lock implementations

Signed-off-by: Alexandre Lamarre <alex7285@gmail.com>

Merge pull request #35 from alexandreLamarre/versionning

Versioning Improvements

Merge pull request #29 from alexandreLamarre/build-constraints

Add build constraints for LockManager backends, for go builds & docker

Merge pull request #9 from alexandreLamarre/examples

Add docker compose examples for lock backends, health probes & dlockctl improvements

Release v0.1.0