NanoporeParser should throw the custom DataParserExceptions and DataValidationExceptions

[Steffengreiner]

Is your feature request related to a problem? Please describe.
Currently the NanoporeParser returns the everit ValidationException if the provided filetree doesn't follow the predefined schema.
This leads to the Issue that the applications using the NanoporeParser have to include the everit package as a dependency to interpret the exception.
Additionally, it returns different uncatched exceptions(IOException/ParserException/FileNotFoundException) dependent on why the parsing fails.

Describe the solution you'd like
Replace the ValidationException with the custom DatasetValidationException akin to the BioionformaticAnalysisParser and the MaxQuantParser.
The different Exceptions which could be generated during the parsing of a filetree, should be catched akin to the BioionformaticAnalysisParser and the MaxQuantParser and a custom DataParserException should be thrown for easier debugging.