Add sample habitat image and zone data

- Renames fixture scripts

backend/right_tree/api/migrations/0007_alter_zoneimagesegment_segment_percentage_width.py

@@ -0,0 +1,18 @@
+# Generated by Django 3.2.8 on 2021-11-10 02:04
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('api', '0006_auto_20211109_2255'),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name='zoneimagesegment',
+            name='segment_percentage_width',
+            field=models.FloatField(default=0),
+        ),
+    ]