Convert to webflux

[jaserud]

changes:

• all methods (Controller, Service, Repo etc) return Mono now
• Spring Security updated to make use of reactive method security
• Brought in spring-data-elastic to make use of its reactive client ReactiveElasticsearchClient : https://docs.spring.io/spring-data/elasticsearch/docs/current/reference/html/#elasticsearch.clients.reactive (the es query and sorts remains unchanged just the client is reactive now)
• Updated grahpql to handle the security context correctly
• Slight refactoring with the WesRunSerivce cause there was a lot of duplicated code between it and the gql services, now the service is basically a shim over the RunSerevice and TaskService and it just converts the values to Wes standard objects
• formatter changes