refactor Pim passes layout

src/PIM/Pass/PIMPasses.h

@@ -0,0 +1,30 @@
+#pragma once
+
+#include "mlir/Pass/Pass.h"
+
+#include <memory>
+#include <string>
+
+namespace onnx_mlir {
+
+std::unique_ptr<mlir::Pass> createONNXToSpatialPass();
+
+std::unique_ptr<mlir::Pass> createSpatialToGraphvizPass();
+
+std::unique_ptr<mlir::Pass> createSpatialToPimPass();
+
+std::unique_ptr<mlir::Pass> createBufferizePimPass();
+
+std::unique_ptr<mlir::Pass> createConstantFoldingPass();
+
+std::unique_ptr<mlir::Pass> createMaterializeConstantsPass();
+
+std::unique_ptr<mlir::Pass> createVerificationPass();
+
+std::unique_ptr<mlir::Pass> createEmitPimJsonPass();
+
+std::unique_ptr<mlir::Pass> createMessagePass(std::string message);
+
+std::unique_ptr<mlir::Pass> createCountInstructionPass();
+
+} // namespace onnx_mlir