Initial work on asset DB perms

Partial #352.

assets/migrations/0010_auto_20191011_1322.py

@@ -0,0 +1,17 @@
+# Generated by Django 2.0.13 on 2019-10-11 12:22
+
+from django.db import migrations
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('assets', '0009_auto_20191008_2148'),
+    ]
+
+    operations = [
+        migrations.AlterModelOptions(
+            name='asset',
+            options={'permissions': (('asset_finance', 'Can see financial data for assets'),)},
+        ),
+    ]