* Adapting official multiple storages.
* Added config to defines storages. See conf/import-tmpl/inter_server.conf.
* Added packet IZ `0x388c` for sending storage definitions.
* Added script command `openstorage2` to open premium storages.
* Removed `sd->storage_size`, replaced by `sd->storage.max_amount`. The value is defined in inter_server.conf in storage entries.
Signed-off-by: Cydh Ramdh <cydh@pservero.com>
