Introduce a test plan to exercise ServiceProfile features, specifically:

• for each of emojivoto and books:
  • generate service profiles
    • from tap
    • from swagger (books only)
    • from proto (emojivoto only)
  • validate retries
  • validate timeouts
  • validate request matches
  • validate metrics
  • Test script to deploy emojivoto and books at scale #2517 deploy to cloud providers at scale

Part of #2459