Adapt wallet UTXO selection to dust patch

[michaelsutton]

Applies a fix to the wallet UTXO selection algorithm: if the created transaction has a change output (and thus 2 outputs overall), try having at least 2 inputs as well (in order to not be slowed down by dust patch).

Note that the auto-compound case does not require any adjustments. If the last tx in the compound op has a single input, there wouldn't be a need for the last level in the compound tree

[codecov[bot]]

Codecov Report

Attention: 17 lines in your changes are missing coverage. Please review.

Comparison is base (8e71f79) 58.90% compared to head (ad1a49c) 58.89%. Report is 2 commits behind head on dev.

Files	Patch %	Lines
cmd/kaspawallet/send.go	0.00%	14 Missing :warning:
...allet/daemon/server/create_unsigned_transaction.go	0.00%	1 Missing :warning:
.../consensus/processes/blockbuilder/block_builder.go	66.66%	0 Missing and 1 partial :warning:
domain/miningmanager/mempool/mempool.go	0.00%	1 Missing :warning:

Additional details and impacted files

```diff @@ Coverage Diff @@ ## dev #2254 +/- ## ========================================== - Coverage 58.90% 58.89% -0.01% ========================================== Files 679 679 Lines 33243 33243 ========================================== - Hits 19582 19580 -2 - Misses 10814 10817 +3 + Partials 2847 2846 -1 ```

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