Migrate to exclusive use of V3 API

[pacphi]

Revisit implementations of services and tasks for fetch and assembly of data from Cloud Foundry.

Refactor:

• EventsService
• AppDetailTask

Adapt to existing domain model.

Consult:

V3 Cloud Foundry API

• List events
• Get event
• List apps
• Get app

cf-java-client API

• ReactorApplicationsV3

[pacphi]

May want to take a look at refactoring how service instance data is retrieved too.

See

• Service instances
• ReactorServiceInstancesV3