feat: Added AvgPooling2D export op

aidge_export_cpp/kernels/pooling.hpp

@@ -86,7 +86,7 @@ void pooling_forward(
                     outputs[oOffset + output] = maxVal;
                 }
                 else if (POOLING_TYPE == Average) {
-                    int32_t sum = 0;
+                    Output_T sum = 0;
 
                     for (int sy = 0; sy < POOL_HEIGHT; ++sy) {
                         if ((PADDING_Y != 0

aidge_export_cpp/operators.py

@@ -248,6 +248,20 @@ class MaxPoolCPP(ExportNodeCpp):
 
         _setup_pooling(self)
 
+@ExportLibCpp.register("AvgPooling2D", aidge_core.ImplSpec(aidge_core.IOSpec(aidge_core.dtype.float32)))
+class AvgPoolCPP(ExportNodeCpp):
+    def __init__(self, node, mem_info):
+        super().__init__(node, mem_info)
+
+        # No padding with MaxPooling
+        # Use PaddedMaxPooling to add padding attribute
+        self.attributes["padding"] = [0, 0]
+        self.attributes["pool_type"] = "Average"
+        self.attributes["activation"] = "Linear"
+        self.attributes["rescaling"] = "NoScaling"
+
+        _setup_pooling(self)
+
 @ExportLibCpp.register_metaop("PaddedMaxPooling2D", aidge_core.ImplSpec(aidge_core.IOSpec(aidge_core.dtype.float32)))
 class PaddedMaxPoolCPP(ExportNodeCpp):
     def __init__(self, node, mem_info):