Calculate+simulate Hare bandwidth requirements

[selfdual-brain]

We need to understand the size of data that must be transmitted while running Hare protocol. There are 3 levels of this:

• theoretical calculation "on paper"
• measurements in the simulator
• measurements in test network (with production code).

In particular we would like to understand how the upload/download values are going to change on network growth and which portion of this is the gossip overhead.

[selfdual-brain]

Relevant effort at dev side is tracked here: spacemeshos/go-spacemesh#3798

[selfdual-brain]

https://community.spacemesh.io/t/hare-data-volume-optimizaton/330

[lrettig]

to be handled as part of hare3 rollout