Assign entries for voting

[jayjay19630]

Description

This change allows admin to control when they wish to assign / reassign entries for voting. Doing so will delete all existing vote submissions and essentially 'reboot' the assignment so that each entry has a fair chance of being voted on.

Type of change

• [ ] Bug fix (non-breaking change which fixes an issue)
• [x] New feature (non-breaking change which adds functionality)
• [ ] Breaking change (fix or feature that would cause existing functionality to not work as expected)
• [ ] This change requires a documentation update
• [ ] Code quality improvements

Checklist

• [x] I have tested this code
• [ ] I have updated the documentation