feat(network): Add initial filtering to network

See #19

people/migrations/0017_answerset_replaced_timestamp.py

@@ -0,0 +1,18 @@
+# Generated by Django 2.2.10 on 2020-03-09 15:23
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('people', '0016_add_answer_set'),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name='relationshipanswerset',
+            name='replaced_timestamp',
+            field=models.DateTimeField(blank=True, editable=False, null=True),
+        ),
+    ]