Liz Lightning

Results 5 issues of Liz Lightning

### ⚠️ This is still a work in progress ⚠️ #### Add support for bip324 v2 p2p protocol I worked on bip324 code for the [bitcoin-bip324-proxy project](https://github.com/lnliz/bitcoin-bip324-proxy) and created the...

getrawmempool rpc response is missing multiple fields like `fees` that make it impossible to use the rpc client with a vanilla bitcoin core node. `fees` were added in bitcoin 0.17.0...

feature
json

starting v29 bitcoin core uses cmake and not autoconf

this PR adds support for signet. it is working when using bitcoinrpc node for sync but needs to test more