Create applet delegate creation code

[adaburrows]

We need a helper that constructs the AppBlockDelegates for a given applet:

/**
 * The interface currently exposed to an application for full screen app blocks
 */
export interface AppBlockDelegate {
  appAgentWebsocket: AppAgentClient
  appletInfo: AppletInfo[]
  sensemakerStore: SensemakerStore
  profileStore: ProfilesStore
}