arrange bareos-webui to php-fpm docker network rockstor#94

Our Bareos-webui container uses bareos-webui-php-fpm as its
fastcgi server via `fastcgi_pass bareos-webui-php-fpm:9000;`.
Remove director to bareos-webui-php-fpm docker network and
add dedicated bareos-webui to bareos-webui-php-fpm to enable
private use of the php-fpm by bareos-webui. Resolving a prior
failure to resolve the php-fpm containers docker name.

bareos-server-set.json

@@ -16,9 +16,11 @@
         {
           "name": "bareos-director-to-webui",
           "source_container": "bareos-webui"
-        },
+        }
+      ],
+      "bareos-webui": [
         {
-          "name": "bareos-director-to-webui-php-fpm",
+          "name": "bareos-webui-to-webui-php-fpm",
           "source_container": "bareos-webui-php-fpm"
         }
       ]