Add EBS configuration options

This adds `.ebextension` options to the repository that can control how the beanstalk environment is configured. The two files perform different tasks:

- `sfr-bardo-copyright-development.config` is an empty file for environment variables (empty because at present ENV variables contain secrets that cannot be committed to source control)
- `cron-linux.config` contains configuration details for a nightly cron task that checks for updates from the source git repositories

.ebextensions/cron-linux.config

@@ -0,0 +1,18 @@
+files:
+    "/etc/cron.d/mycron":
+        mode: "000644"
+        owner: root
+        group: root
+        content: |
+            10 1 * * * root /usr/local/bin/updateNightly.sh
+    
+    "/usr/local/bin/updateNightly.sh":
+        mode: "000755"
+        owner: root
+        group: root
+        content: |
+            #!/bin/bash
+
+            while read -r line; do eval "$line"; done < /opt/python/current/env
+
+            python3 /opt/python/current/app/main.py --time 86400

.ebextensions/sfr-bardo-copyright-development.config

@@ -0,0 +1,2 @@
+option_settings:
+  aws:elasticbeanstalk:application:environment: