Add Postgre SQL Support for php-fpm & edit webserver session storage location

+ Fix bug

docker-compose.yml

@@ -77,6 +77,7 @@ services:
           - INSTALL_EXIF=${PHP_FPM_INSTALL_EXIF}
           - INSTALL_AEROSPIKE=${PHP_FPM_INSTALL_AEROSPIKE}
           - INSTALL_MYSQLI=${PHP_FPM_INSTALL_MYSQLI}
+          - INSTALL_PGSQL=${PHP_FPM_INSTALL_PGSQL}
           - INSTALL_TOKENIZER=${PHP_FPM_INSTALL_TOKENIZER}
           - INSTALL_INTL=${PHP_FPM_INSTALL_INTL}
           - INSTALL_GHOSTSCRIPT=${PHP_FPM_INSTALL_GHOSTSCRIPT}