[3/?] StaticAddr: Deposit tracking and timeout sweep

[hieblmi]

trafficstars

It introduces tracking of deposits to a static address and monitoring of the CSV expiry. Instead of using RegisterConfirmationsNtfn to detect spends to a pkScript, we poll the lnd account of the imported static address taproot script and notify the main event loop of the manager about new deposits to a static address.

~Todo:~

~- state machine recovery~ ~- listening for timeout tx confirmations to be sure that the client claimed funds.~

[lightninglabs-deploy]

@bhandras: review reminder @sputn1ck: review reminder

[hieblmi]

So far this looks good to me! Gonna try to do a test run in a bit

Thank you, for convenience, here are some steps I take to test this.

• reduce the CSV value on the server to be able to timeout after 100 blocks or so.
• create a static address on the client side loop --network=regtest s n
• send coins to it reg_bob sendcoins --amt 9111123 --addr static_addr_here --min_confs 0
• mine 3 blocks, otherwise the coins are not showing up in loop --network=regtest s list
• check the deposit with loop --network=regtest s list
• mine enough blocks to timeout the deposit...
• restarting between any of these steps should recover

[hieblmi]

Thanks for the review @bhandras, I plan to add some unit tests to increase test coverage.