huge refactor for high RewritePatterns usage and less ad-hoc cpp code

remove Spatial many ops in favor of tensor ops like in pim

src/PIM/Conversion/SpatialToPim/PhaseVerification.cpp

@@ -0,0 +1,20 @@
+#include "src/Accelerators/PIM/Conversion/SpatialToPim/PhaseVerification.hpp"
+#include "src/Accelerators/PIM/Dialect/Spatial/SpatialOps.hpp"
+
+using namespace mlir;
+
+namespace onnx_mlir {
+
+LogicalResult verifySpatialToPimBoundary(ModuleOp moduleOp) {
+  bool hasFailure = false;
+  moduleOp.walk([&](Operation* op) {
+    if (op->getDialect()->getNamespace() != "spat")
+      return;
+
+    op->emitError("illegal Spatial operation remains after Spatial-to-PIM lowering");
+    hasFailure = true;
+  });
+  return success(!hasFailure);
+}
+
+} // namespace onnx_mlir