feature: Provide a heuristic for a coin's privacy in the tx description.

[emergent-reasons]

The specific idea I had is if we put the total in/out count at the front of fusion descriptions, then that description also appears on any coins in the coin chooser. That helps a sophisticated user to select coins and I assume the cost of adding the information is low.

[markblundeberg]

Hmm the in/out count is in label now, what do you mean?

[emergent-reasons]

It shows your personal in/outs but unless I misunderstand:

1. there can be more than one in a line
2. there is no aggregate for the whole tx.

I am proposing this:

CashFusion 6⇢5, 0.0x BCH (−1076 sats fee); CashFusion 6⇢5, 0.0x BCH (−1076 sats fee

-->

CashFusion (41⇢52) 6⇢5, 0.0x BCH (−1076 sats fee); CashFusion 10⇢1, 0.0x BCH (−1076 sats fee

I guess I would actually simplify the rest of it too for release but that would be a separate discussion.

[emergent-reasons]

Again, my assumption is that this is a useful heuristic for the privacy gain due to this fuse. If that is not true, please don't put this.

[markblundeberg]

Oh gotcha, yes "total" :-)

Hmm interesting idea... yes the total in/outs is an easy heuristic for that purpose. I'm hoping in long run that we have better than this, but for now we can do that.