Add support for Terminal (litd) v0.12.5-alpha

[jamaljsr]

Description

In anticipation of the upcoming release of Taproot Asset channels, I've added support for Terminal (litd) nodes in Polar. The asset channels will require litd to be created as well as to send & receive asset payments over lightning. This PR does not include any asset channel capabilities since those features have not been officially released by Lightning Labs yet. This just lays the foundation for litd support by adding the current latest version v012.5-alpha. A future update will add support for asset channel funding and payments.

litd nodes integrate lnd, tapd, and others into a single daemon. In Polar, all of the existing Lightning and Taproot Assets functionality is made available for the litd nodes. Additionally, I've added support for creating Lightning Node Connect (LNC) sessions on the litd nodes, so you can easily test third-party apps connecting to the node over LNC.

FYI: While litd does support Loop and Pool, those daemons have been disabled by default in Polar because they require backend coordination servers to function properly. Support for these services may be added in a future update.

Screenshots