SMART-42 added username field to UserProfile entity

rest-app/smartpicasso/app/user_profile/migrations/0003_userprofile_username.py

@@ -0,0 +1,20 @@
+# Generated by Django 3.1.3 on 2020-12-09 18:34
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+    atomic = False
+
+    dependencies = [
+        ('user_profile', '0002_remove_userprofile_phone_number'),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name='userprofile',
+            name='username',
+            field=models.CharField(default='', max_length=50, unique=True),
+            preserve_default=False,
+        ),
+    ]