Add API hook for logging risk assessment completion (#341)

RIGS/migrations/0034_event_risk_assessment_edit_url.py

@@ -0,0 +1,18 @@
+# Generated by Django 2.0.5 on 2019-07-28 21:28
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('RIGS', '0033_auto_20180325_0016'),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name='event',
+            name='risk_assessment_edit_url',
+            field=models.CharField(blank=True, max_length=255, null=True),
+        ),
+    ]