renamed the service from single-service to standalone-service
added @Qualifier annotations for the Service handlers in both the Secret service and resource service. (this is to run the mft-standalone-service by both the IDE and using distribution enabling the beans imported from Spring.xml as well as component scanning)
added project version to the dependencies and removed an unnecessary dependency (javax.validation)
reverted the XmlConfiguration classes to import spring.xml
Mainly addressed the review comments from the PR - https://github.com/apache/airavata-mft/pull/67