108536234: created users and roles data and domain model.

You will need to run the /scripts/bootstrap.sh to create the database for test and the app.

scripts/bootstrap.sh

@@ -0,0 +1,36 @@
+#!/bin/bash
+#
+# Bootstrap virtualenv environment and postgres databases locally.
+#
+# NOTE: This script expects to be run from the project root with
+# ./scripts/bootstrap.sh
+
+set -o pipefail
+
+function display_result {
+  RESULT=$1
+  EXIT_STATUS=$2
+  TEST=$3
+
+  if [ $RESULT -ne 0 ]; then
+    echo -e "\033[31m$TEST failed\033[0m"
+    exit $EXIT_STATUS
+  else
+    echo -e "\033[32m$TEST passed\033[0m"
+  fi
+}
+
+if [ ! $VIRTUAL_ENV ]; then
+  virtualenv ./venv
+  . ./venv/bin/activate
+fi
+
+# Install Python development dependencies
+pip3 install -r requirements_for_test.txt
+
+# Create Postgres databases
+createdb notifications_admin
+createdb test_notifications_admin
+
+# Upgrade databases
+python app.py db upgrade