 djvudump SP mapping

```
DjvuDump - Version of extractor
 - ma byt 21? Nejspis to je Version of format

 - fits / MIME Type / spatne se pousti (je tam stdout)
 - djvudump ma nejakou validaci?
 - Universal Identifier... -> UUID
 - DjVu Version / exiftool -> Charakterizace
 - Space resolution / exiftool -> Charakterizace
```
