[Refactor] node.ignore is now a flag instead of a required attribute

aidge_export_cpp/export_utils.py

@@ -167,7 +167,6 @@ def exclude_unwanted_producers(model):
     nodes_to_ignore = ["Mul", "BitShift"]
 
     for node in model.get_nodes():
-        node.attributes().ignore = False   
         if node.type() == "Producer":
             children_nodes = [n.type() for n in node.get_children()]
             for node_type in nodes_to_ignore:

aidge_export_cpp/operators/Producer.py

@@ -47,15 +47,7 @@ class ProducerCPP(ExportNode):
     def __init__(self, node, mem_info):
         super().__init__(node, mem_info)
         self.values = np.array(self.operator.get_output(0))
-        if node.attributes().has_attr("ignore"):
-            self.ignore = node.attributes().ignore
-        else:
-            self.ignore = False
-
-        if node.attributes().has_attr("ignore"):
-            self.ignore = node.attributes().ignore
-        else:
-            self.ignore = False
+        self.ignore = node.attributes().has_attr("ignore")
 
         if len(self.values.shape) == 4:  # Note: export in HWC
             self.values = np.transpose(self.values, (0, 2, 3, 1))