Add partial CLN support with potential for other node types in the future

.gitignore

@@ -1,6 +1,6 @@
 # Generated by Cargo
 # will have compiled files and executables
-/target/
+**/target
 
 # Remove Cargo.lock from gitignore if creating an executable, leave it for libraries
 # More information here https://doc.rust-lang.org/cargo/guide/cargo-toml-vs-cargo-lock.html

Cargo.toml

@@ -16,6 +16,7 @@ url = "2.2.1"
 drop-root = "0.1.1"
 dbif = { path = 'dbif'}
 lnd-rs = { path = "lnd-rs" }
+cln-rs = { path = "cln-rs" }
 configure_me = "0.4.0"
 handlebars = "4.2.1"
 chrono = "0.4.35"
@@ -33,6 +34,7 @@ axum-extra = { version = "0.9.3", features = ["cookie"] }
 axum_typed_multipart = "0.11.0"
 tempfile = "3.10.1"
 tower-http = { version = "0.5.2", features = ["fs", "cors"] }
+async-trait = "0.1.81"
 
 [build-dependencies]
 configure_me_codegen = "0.4.1"

cln-rs/Cargo.toml

@@ -0,0 +1,14 @@
+[package]
+name = "cln-rs"
+version = "0.1.0"
+edition = "2021"
+
+[lib]
+name = "cln_rs"
+
+[dependencies]
+prost = "0.13.1"
+tonic = { version = "0.12.1", features = ["tls"] }
+
+[build-dependencies]
+tonic-build = "0.12.1"

cln-rs/README.md

@@ -0,0 +1,6 @@
+### Note
+
+CLN provides a `cln-grpc` crate that provides the same definitions as this crate. I was not able to get CLN's crate to work, due to potential version
+differences in tonic, prost, axum, or maybe another library we're using.
+
+As a result, I've built this crate using the proto files extracted from the `cln-gprc` crate.

cln-rs/build.rs

@@ -0,0 +1,8 @@
+// builds the src/cln.rs from the node.proto and primities.proto definitions
+fn main() -> Result<(), std::io::Error> {
+    tonic_build::configure()
+        .build_client(true)
+        .build_server(false)
+        .out_dir("src")
+        .compile(&["protos/node.proto", "protos/primitives.proto"], &["protos"])
+}