Add --streaming option to create_remote and restore_remote

[Slach]

Need channel and go-routines implementation for

• create_remote shoulc combine move shadow + upload + delete after upload each part
• restore_remote combine download one part + ATTACH PART + delete after download each part

[alex-zaitsev]

1. Same logic would be convenient for create_remote as well.
2. It should be default mode for restore_remote/create_remote. If user want to keep the local data, he can use separate commands: 'create + upload' and 'download + restore' correspondingly.