Modification de la classe Comm_calls_Data_Server_Impl afin que l'implémentation au niveau de l'interface fonctionne

requested review from @pirousse

assigned to @dusylvai

added 25 commits

• 76283b9a...4dce52a9 - 24 commits from branch data
• 12084ead - Ajout d'une méthode + ajout d'un constructeur sans arguments + changement type

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added 1 commit

• 75e8f2d5 - Code cleaning

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approved this merge request

mentioned in commit f3c55b48

merged