feat(asb, cli): Listen on onion address, dial onion addresses (#203)

This pull requests
- Adds rust native support for the `asb` to listen on an onion service. Previously we were depedent on a seperately running `torc` client. Instead we now use [arti](https://tpo.pages.torproject.net/core/arti/), a rust implementation of the tor protocol.
- Removes the `tor.control_port` and `tor.socks5_port` property from the config of the `asb`
- Adds a new `tor.register_hidden_service` boolean property to the config of the `asb` which when enabled automatically runs a hidden service at startup
- Adds a new `tor.hidden_service_num_intro_points` config property to specify how many introduction points to register the onion service at
- Adds support for the `cli` to dial onion addresses

This is dependent on https://github.com/umgefahren/libp2p-tor/pull/24

Closes https://github.com/UnstoppableSwap/core/issues/16

swap/tests/harness/mod.rs

@@ -243,7 +243,7 @@ async fn start_alice(
     let latest_rate = FixedRate::default();
     let resume_only = false;
 
-    let mut swarm = swarm::asb(
+    let (mut swarm, _) = swarm::asb(
         seed,
         min_buy,
         max_buy,
@@ -252,6 +252,7 @@ async fn start_alice(
         env_config,
         XmrBtcNamespace::Testnet,
         &[],
+        None,
     )
     .unwrap();
     swarm.listen_on(listen_address).unwrap();