add signup view

apps/member/urls.py

@@ -0,0 +1,14 @@
+#!/usr/bin/env python
+
+# -*- mode: python; coding: utf-8 -*-
+# Copyright (C) 2018-2019 by BDE ENS Paris-Saclay
+# SPDX-License-Identifier: GPL-3.0-or-later
+
+from django.urls import path
+
+from . import views
+
+app_name = 'member'
+urlpatterns = [
+    path('signup/',views.SignUp.as_view(),name="signup")
+]