Merge branch 'dev/5.3' of...

Merge branch 'dev/5.3' of https://git-ce.rwth-aachen.de/vr-vis/VR-Group/unreal-development/plugins/unreal-study-framework into dev/5.3

# Conflicts:
#	Source/StudyFrameworkPlugin/Private/SFParticipant.cpp
#	Source/StudyFrameworkPlugin/Public/SFParticipant.h