feat: add callback to sender (!73) · Merge requests · FIT-Connect / FIT-Connect-SDK - .NET · GitLab

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Klaus Fischer requested to merge task/1096-add-callback-to-sender into main Jun 24, 2023

also done:

MininmalStraightForwardTest to send a mininmal submission
moved interfaces to own files
removed CallbackDto
changed Callback from record to class

contributes to planning#1096 (closed) for the .NET SDK