Merge branch '50-support-de-batch-pour-les-contreparties' into 'preprod'
Resolve "Support de batch pour les contreparties" Closes #76, #50, and #71 See merge request lqdn-interne/don!73
Resolve "Support de batch pour les contreparties" Closes #76, #50, and #71 See merge request lqdn-interne/don!73