Refactor monero-harness containers

1. Split up image::Monero into Monerod and MoneroWalletRpc
2. Don't use `bash` to run the internal command. Instead we disable
the entrypoint script as per https://github.com/XMRto/monero#raw-commands
3. Remove the start up delay by listening for the correct log message.
To make this more resilient, we make the log level NOT configurable and
instead always log verbosely.

swap/tests/happy_path.rs

@@ -4,8 +4,6 @@ use harness::SlowCancelConfig;
 use swap::protocol::{alice, bob};
 use tokio::join;
 
-/// Run the following tests with RUST_MIN_STACK=10000000
-
 #[tokio::test]
 async fn happy_path() {
     harness::setup_test(SlowCancelConfig, |mut ctx| async move {