feature request: cli

[hexylena]

Even something as simple as

import sys                                          
                                                    
from rocrateValidator import validate as validate   
v = validate.validate(sys.argv[1])                  
v.validator()                                       

would be a great help! Additionally to return the message on validator() rather than invoking print could be nice for consumers to decide how they want to handle the output.

[stain]

There's an experimental CLI as part of runcrate on a branch that uses this ro-crate-validator library.