* moved spring-cloud-bus (submodule) to spring-cloud-modules (parent)
* moved spring-cloud-cli (submodule) to spring-cloud-modules (parent)
* moved spring-cloud-data-flow (submodule) to spring-cloud-modules (parent)
* moved spring-sleuth (submodule) to spring-cloud-modules (parent)
* Deleted submodules that we moved to spring-cloud-modules
* deleted old modules from parent pom
Co-authored-by: panagiotiskakos <panagiotis.kakos@libra-is.com>