Events Player

• collection all aop basic
  Basic listening to before and after events on event collections via listen() providing a function
• collection map aop basic
  Basic listening to before and after events on event collections via listen() providing a map
• collection all aop adv
  Advanced version, listening to before and after events on event collections via listen() providing a function
• collection map aop adv
  Advanced version, listening to before and after events on event collections via listen() providing a map