Add XCM Tracing (#3353)

* add missing bridges logging target

* trace send_xcm

* trace execute_xcm

* trace calls in xcm-executor

* trace tuple implementations of xcm traits

* update cargo.lock

* remove bridge log target

Co-authored-by: Bastian Köcher <bkchr@users.noreply.github.com>

* log argument formatting

Co-authored-by: Bastian Köcher <bkchr@users.noreply.github.com>

Co-authored-by: Bastian Köcher <bkchr@users.noreply.github.com>

polkadot/xcm/xcm-executor/src/traits/conversion.rs

@@ -173,6 +173,12 @@ impl<O> ConvertOrigin<O> for Tuple {
 				r => return r
 			};
 		)* );
+		log::trace!(
+			target: "xcm::convert_origin",
+			"could not convert: origin: {:?}, kind: {:?}",
+			origin,
+			kind,
+		);
 		Err(origin)
 	}
 }