Implement resetConsummerProducer() for meta op

Fixes #134 (closed) by implementing resetConsummerProducer() for meta op.

include/aidge/operator/MetaOperator.hpp

@@ -108,6 +108,7 @@ public:
     Elts_t getNbProducedData(IOIndex_t outputIdx) const override;
 
     void updateConsummerProducer() override;
+    void resetConsummerProducer() override;
     void forward() override;
     void backward() override {
         AIDGE_THROW_OR_ABORT(std::runtime_error, "backward() not implemented yet for a MetaOperator");