Enhancement: Add an option to delete or (even better) hide a person

[elpraga]

Thank you for the so much useful app! It is indeed great!

I've just started using it, and I've come across something.

I'vet got in the order of tens of thousands pictures. After processing, some 400 drawings from a book got recognised as faces.

I've marked them as drawing, and they are groupped together, but they also appear second in the list (due to their number), which is less tan ideal.

I believe adding an entry to hide a person would be beneficial.

What do you think?