Create resource renderer delegation creation code

[adaburrows]

Create a helper to create the ResourceBlockDelegates for each applet's resource renderers:

/**
 * The only interface needed for a resource renderer.
 * Technically, if we knew what zome call correpsonded to which reading of a
 * resource, we could create a delegate that only allowed minimal access.
 */
export interface ResourceBlockDelegate {
  appAgentWebsocket: AppAgentClient
}