Add paper_signatures_enabled field to PetitionTemplate Model

This will allow in the future to set this in a template so that
all petition using this template inherit from the setting.

Author: fallen

pytition/petition/migrations/0017_petitiontemplate_paper_signatures_enabled.py

@@ -0,0 +1,18 @@
+# Generated by Django 3.2 on 2023-01-06 14:53
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('petition', '0016_signature_uses_phone_number_field'),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name='petitiontemplate',
+            name='paper_signatures_enabled',
+            field=models.BooleanField(default=False),
+        ),
+    ]

pytition/petition/models.py

@@ -537,6 +537,7 @@ class PetitionTemplate(models.Model):
     confirmation_email_reply = models.EmailField(max_length=100, blank=True)
     use_custom_email_settings = models.BooleanField(default=False)
     has_share_buttons = models.BooleanField(default=True)
+    paper_signatures_enabled = models.BooleanField(default=False)
 
     def __str__(self):
         return self.name