Participant deletion

[antoineatstariongroup]

Prerequisites

• I have written a descriptive issue title
• I have verified that I am running the latest version of the UI-DSM
• I have searched open and closed issues to ensure it has not already been reported

Description

When deleting a Participant, all Annotation and replies that has been created by the Participant has to be deleted.
Remove the Author property inside ReviewObjective and ReviewTask.
Unset the Assignment to task for the participant

Steps to Reproduce

System Configuration

• UI-DSM version:
  • UI-DSM:
  • Other:
• Environment (Operating system, version and so on):
• .NET Framework version:
• Additional information: