Adds a tournament filter for PlayerRegistration

tournaments/admin.py

@@ -60,6 +60,7 @@ class RoundAdmin(admin.ModelAdmin):
 class PlayerRegistrationAdmin(admin.ModelAdmin):
     list_display = ['first_name', 'last_name', 'licence_id', 'rank']
     search_fields = ('first_name', 'last_name')
+    list_filter = [TeamScoreTournamentListFilter]
 
 class MatchAdmin(admin.ModelAdmin):
     list_display = ['__str__', 'round', 'group_stage', 'start_date', 'index']