Eventing Integration

[lkingland]

Now that preliminary eventing integration is complete, we would like to expand it to include a more interactive method for subscribing Functions to events. This will take the form of a prompt via the CLI (along with the assocaited Client API). This will require the creation of a server-side reporting mechanism for querying the list of available events, as well as the client-side prompts for displaying and choosing which events a given Function should be subscribed to.