InitSwitch: takes no arguments, returns nothing
Initialize ports P1, P3, P4 as inputs

ReturnColor: takes no arguments, returns team_t GREEN_TEAM or RED_TEAM
If Port T4 is high return GREEN_TEAM
Else return RED_TEAM

ReturnOvertime: takes no arguments, returns 1 if overtime, 0 otherwise
If Port T4 is high return 1
Else return 0

ReturnCourt: takes no arguments, returns 1 if full court, 0 otherwise
If Port T4 is high return 1
Else return 0