Adds compile-extenstion call to write config.yml which extends droplet metadata
Adds compile-extenstion call to write config.yml which extends droplet metadata

cloudfoundry/php-buildpack,cloudfoundry/php-buildpack,cloudfoundry/php-buildpack,cloudfoundry/php-buildpack,cloudfoundry/php-buildpack,cloudfoundry/php-buildpack,cloudfoundry/php-buildpack