add relu lowering

add relu validation
add spatial compute helper
minor refactors

src/PIM/Conversion/ONNXToSpatial/Patterns/NN/Pool.cpp

@@ -257,7 +257,7 @@ struct PoolToSpatialCompute<ONNXAveragePoolOp>
 
 } // namespace
 
-void populatePoolTilingPattern(RewritePatternSet& patterns, MLIRContext* ctx) {
+void populatePoolPatterns(RewritePatternSet& patterns, MLIRContext* ctx) {
   patterns.insert<PoolToSpatialCompute<ONNXMaxPoolSingleOutOp>>(ctx);
   patterns.insert<PoolToSpatialCompute<ONNXAveragePoolOp>>(ctx);
 }