adding symfony skeleton project

compose.yaml

web_app/.env.dev

web_app/.gitignore

web_app/bin/console

web_app/composer.json

web_app/config/bundles.php

web_app/config/packages/cache.yaml

web_app/config/packages/framework.yaml

web_app/config/packages/routing.yaml

web_app/config/preload.php

web_app/config/routes.yaml

web_app/config/routes/framework.yaml

web_app/config/services.yaml

web_app/public/index.php

web_app/src/Controller/.gitignore

web_app/src/Kernel.php

web_app/symfony.lock