feat: toy tutorial chapter 4.

Signed-off-by: jackfiled <xcrenchangjun@outlook.com>

include/Passes.h

@@ -0,0 +1,20 @@
+//
+// Created by ricardo on 02/06/25.
+//
+
+#ifndef PASSES_H
+#define PASSES_H
+
+#include <memory>
+
+namespace mlir
+{
+    class Pass;
+
+    namespace hello
+    {
+        std::unique_ptr<Pass> createShapeInferencePass();
+    }
+}
+
+#endif //PASSES_H