add constant folding and verification pass for pim host operations

better validation scripts output
big refactors

src/PIM/Conversion/ONNXToSpatial/Tensor/RemoveUnusedHelperOps.cpp

@@ -10,7 +10,7 @@ using namespace mlir;
 namespace onnx_mlir {
 
 template <typename OpTy, typename OpAdaptorTy>
-struct RemoveUnusedHelperOps : public OpRewritePattern<OpTy> {
+struct RemoveUnusedHelperOps : OpRewritePattern<OpTy> {
   RemoveUnusedHelperOps(MLIRContext* ctx)
   : OpRewritePattern<OpTy>(ctx) {}