add sign up process for backlogger

backlogger/forms.py

@@ -1,7 +1,17 @@
 from django import forms
+from django.contrib.auth.forms import UserCreationForm
+from django.contrib.auth.models import User
 from .models import Item
 
 
+class SignupForm(UserCreationForm):
+    email = forms.EmailField(required=True)
+
+    class Meta:
+        model = User
+        fields = ['username', 'email', 'password1', 'password2']
+
+
 class ItemForm(forms.ModelForm):
     progress_percent = forms.FloatField(
         min_value=0,