Sequential schedules

• Add feature to benchmarks to use sequential (single core) schedules in CPU schedules.

juno_samples/rodinia/bfs/src/cpu.sch

@@ -52,6 +52,7 @@ if !feature("seq") {
   let init_body = outline(inner);
 
   inline(bfs@cost_init, bfs@loop1, bfs@loop2);
+  init = init_body;
 }
 delete-uncalled(*);
 const-inline(*);
@@ -59,4 +60,4 @@ simpl!(*);
 
 unforkify(init, traverse, collect);
 simpl!(*);
-gcm(*);
+gcm(*);
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