Enable setting Node as HRN Resolver for 3rd parties in Config

Author: chuksys

bindings/ldk_node.udl

@@ -13,6 +13,7 @@ dictionary Config {
 	u64 probing_liquidity_limit_multiplier;
 	AnchorChannelsConfig? anchor_channels_config;
 	SendingParameters? sending_parameters;
+	boolean is_hrn_resolver;
 };
 
 dictionary AnchorChannelsConfig {

src/config.rs

@@ -115,6 +115,7 @@ pub const WALLET_KEYS_SEED_LEN: usize = 64;
 /// | `log_level`                            | Debug              |
 /// | `anchor_channels_config`               | Some(..)           |
 /// | `sending_parameters`                   | None               |
+/// | `is_hrn_resolver`                      | false              |
 ///
 /// See [`AnchorChannelsConfig`] and [`SendingParameters`] for more information regarding their
 /// respective default values.
@@ -179,6 +180,8 @@ pub struct Config {
 	/// **Note:** If unset, default parameters will be used, and you will be able to override the
 	/// parameters on a per-payment basis in the corresponding method calls.
 	pub sending_parameters: Option<SendingParameters>,
+	/// This allows us to use our node as a DNS resolver for 3rd party HRN resolutions.
+	pub is_hrn_resolver: bool,
 }
 
 impl Default for Config {
@@ -193,6 +196,7 @@ impl Default for Config {
 			anchor_channels_config: Some(AnchorChannelsConfig::default()),
 			sending_parameters: None,
 			node_alias: None,
+			is_hrn_resolver: false,
 		}
 	}
 }