cut block with wedge

benchmarks/step/Block.geo

+Merge "Block.stp";
+SetFactory("OpenCASCADE");
+Wedge(2) = {-32, -2.1, -15.5, 40, 40, 60, 0};
+//+
+BooleanIntersection{ Volume{2}; Delete; }{ Volume{1}; Delete; }
+//+
+Physical Surface(1) = {57, 74, 1};
+//+
+Physical Surface(2) = {2};
+//+
+Physical Volume(3) = {1};