Fix comparison for TCT MT tests

For the diff-root comparison, --order-trees is needed/added. semi-detailed option produce less output for diff-root when there are differences.

@elmsheus, @emoyse, @rmazini, @pberta.

This MR does not affect the reconstruction.

Tools/Tier0ChainTests/test/test_q220_mt.sh

@@ -13,5 +13,5 @@ echo "art-result: $?"
 
 ArtPackage=$1
 ArtJobName=$2
-art.py compare grid --entries 10 ${ArtPackage} ${ArtJobName}
+art.py compare grid --entries 10 ${ArtPackage} ${ArtJobName} --mode=semi-detailed --order-trees
 echo "art-result: $?"