prop224: Implement consensus params to adjust portion of the protocol
After discussion with developers and tor-dev@ thread here https://lists.torproject.org/pipermail/tor-dev/2016-December/011725.html, implementing consensus parameters to control some portion of the protocol. What comes to mind:
- Default number of introduction points and maximum number
- Timeframe and number of introduce before rotating an intro point.
- Descriptor lifetime.
- How many HSDir for a descriptor
- Rendezvous timeout time.
There are probably more.