refactored transformation: added folders for each transformation

src/Transformations/DeadCodeRemoving/dead_code.h

@@ -0,0 +1,15 @@
+#pragma once
+
+#include<string>
+#include<vector>
+
+#include "../Utils/SgUtils.h"
+#include "../CFGraph/CFGraph.h"
+#include "../CFGraph/live_variable_analysis.h"
+#include "../CFGraph/DataFlow/data_flow.h"
+#include "../CFGraph/DataFlow/backward_data_flow.h"
+
+int removeDeadCode(SgStatement* func, 
+                   const std::map<std::string, std::vector<FuncInfo*>>&allFuncs,
+                   const std::map<std::string, CommonBlock*>& commonBlocks, 
+                   SgStatement* intervalDelStart = NULL, SgStatement* intervalDelEnd = NULL);