Add parental and photo authorizations + make health and vaccine sheet and motivation letter optional

Signed-off-by: Emmy D'Anello <emmy.danello@animath.fr>

tfjm/context_processors.py

@@ -11,5 +11,8 @@ def tfjm_context(request):
             'PAYMENT_MANAGEMENT': settings.PAYMENT_MANAGEMENT,
             'SINGLE_TOURNAMENT':
                 Tournament.objects.first() if Tournament.objects.exists() and settings.TFJM_APP else None,
+            'HEALTH_SHEET_REQUIRED': settings.HEALTH_SHEET_REQUIRED,
+            'VACCINE_SHEET_REQUIRED': settings.VACCINE_SHEET_REQUIRED,
+            'MOTIVATION_LETTER_REQUIRED': settings.MOTIVATION_LETTER_REQUIRED,
         }
     }