Set up PeerSwap

Allows to swap sats in and out of Lightning channels without a 3rd party
(and their fees). Instead, swaps can be initiated directly with the
channel peer.

https://www.peerswap.dev/

site-cookbooks/kosmos-bitcoin/attributes/default.rb

@@ -118,3 +118,7 @@ node.default["btcpay"]["domain"] = 'btcpay.kosmos.org'
 node.default['btcpay']['postgres']['port'] = 5432
 node.default['btcpay']['postgres']['database'] = 'btcpayserver'
 node.default['btcpay']['postgres']['user'] = 'satoshi'
+
+node.default['peerswap']['repo'] = 'https://github.com/ElementsProject/peerswap.git'
+node.default['peerswap']['revision'] = 'master'
+node.default['peerswap-lnd']['source_dir'] = '/opt/peerswap'