AutoRef PDEng MSD 2020 implementation

Note: Team-specific pages (such as this one) are for explaining a team's contribution to the overall AutoRef project. Team-specific pages from MSD 2020 onwards do not provide detailed descriptions of the AutoRef system. If you are documenting AutoRef items as a member of MSD 2020 or any other future project, please add details to the general AutoRef page and/or the respective system architecture or implementation pages.

The implementation in AutoRef MSD 2020 involved detecting ball-to-player distance violations.