Disallow old versions of CLN

[ca-ruz]

Smaug should refuse to start if core lightning is too old.

$ cl --version
v24.05

[ca-ruz]

Also add a feature to re add all of the transactions without having to do a re-scan.

[chrisguida]

Yep, if they do a scan but their CLN is too old, they'll need to delete and re-add all their wallets so bookkeeper can get notified of the events. A feature to re-transmit all wallet events to bookkeeper would be fantastic. This actually might already happen on startup? Need to look into it..