Support output feed as input

[unional]

This requires a different way to manage the values.
It will be scoped based:

• when no scope present, the action must be performed by user
• when executing an action, any additional action must be performed by mockto
• any value returned to the user, the performer can be user or mockto (as we have a reference to it before returns)
• any value never returned to the user, the performer can only be mockto
• when in doubt, we can assume the call is made by user, and if it does not take place for n msec, mockto will invoke it.
• when in doubt, we can analyze the subsequence/in-between call to determine if it is made by user or mockto