Rename organizerMember model to OrganizerMember

[naveenkumarsangi]

Rename organizerMember to OrganizerMember
Link to the change: https://github.com/NIT-dgp/festcms/blob/master/festflow/models.py#L115

• Rename the model
• Run python3 manage.py makemigrations

[ankan17]

I would like to fix this issue