Move backend files into a sub folder.

backend/codiki-infrastructure/src/main/resources/sql/000-database-creation.sql

@@ -0,0 +1,12 @@
+\c codiki_db
+
+CREATE EXTENSION IF NOT EXISTS "uuid-ossp";
+
+CREATE USER codiki_user
+    WITH PASSWORD 'password'
+    NOCREATEDB;
+
+GRANT SELECT, INSERT, UPDATE, DELETE
+    ON ALL TABLES
+    IN SCHEMA public
+    TO codiki_user;