staticaddr: `loop static listswaps`

[hieblmi]

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builds on https://github.com/lightninglabs/loop/pull/786

This PR introduces loop static listswaps to enable info look-up of static address loop-in swaps.

Available look-up commands so far are:

loop static listsunspent (looks up lnd wallet utxos for the static address)
loop static summary
loop static listdeposits
loop static listswaps