Introduce MinInputCountByBlameRound

[turbolay]

Description of the idea: #12443

(I know the multiplier should probably be getting ridden off, but considering that it's how we do for MinInputCountByRound I think it should work in the same way)

@lontivero would you prefer another solution? I could instead:

• add a bool isBlame in RoundParameters.Create
• enforce the different minimum in RoundBlameRoundFactory.CreateBlameRoundParameter.
• Remove MinInputCountByBlameRound and instead have a multiplier that is applied to round.Parameters.MinInputCount of a fresh round.

If this PR is implemented, it should come along with a change in coordinator's config, MinInputCountByRoundMultiplier from 0.4 to 0.5

[lontivero]

cACK

[lontivero]

The config contains the values needed for creating rounds, this means that the config instance is required by the rounds' creation code.

When a blame round is created it can use values from the previous round (blame or not) and from config. In summary, config can always be used to create a round.

My previous comment was:

Never use Config anywhere else except in the round creation.

[molnard]

Closed by https://github.com/zkSNACKs/WalletWasabi/pull/12524#pullrequestreview-1903288598