New implementation with threads per component

src/connection.rs

@@ -0,0 +1,12 @@
+use std::sync::Arc;
+use crate::pin::Pin;
+
+pub fn connect_pins(source: &Arc<Pin>, destination: &Arc<Pin>) -> Result<(), String> {
+    let mut source_connections = source.connections.lock().unwrap();
+    source_connections.push(destination.clone());
+
+    let mut dest_connections = destination.connections.lock().unwrap();
+    dest_connections.push(source.clone());
+
+    Ok(())
+}