Cardano Updates

Co-authored-by: Karl Knutsson <[email protected]>

./network-mux/demo/ns-setup.sh is a generic script for running client
/ server applications using traffic shaping.  We can reuse it for
`tx-submission` demo.

WithBytes retains tx bytes for whole tx life time (e.g. until the
inbound side exits), avoiding it we can GC the bytes after decoding is
done and we extract the length of a tx.

This makes it easier to analyse different runs, since all of them use
the same connection four tuples.

This avoids re-serialisation cost to get the size, increases allocation
by storing bytes of the original `tx`.

Increased span of mini-protocol numbers.

* maximum number of txids to request
* unackwnoledged buffer size

Use `WithBearer` with a custom `show` function.

* generate a tx cache using QuickCheck generators.
* analyse a tx cache, output minumum, maximum and average tx size.