Move dev scripts and docker config under dev directory

[MAILPOET-3919]

dev/database/create_test_db.sh

@@ -0,0 +1,10 @@
+#!/bin/bash
+set -e
+
+RUNMYSQL="mysql --user=root --password=${MYSQL_ROOT_PASSWORD}"
+
+$RUNMYSQL <<EOSQL
+CREATE DATABASE ${MYSQL_TEST_DATABASE};
+GRANT ALL PRIVILEGES ON ${MYSQL_TEST_DATABASE}.* TO '${MYSQL_USER}'@'%';
+FLUSH PRIVILEGES;
+EOSQL