Enhanced Genre hierarchy list

[hiccup]

The genre hierarchy list and the 'all genres' test files were updated.

[hiccup]

Updated, many small changes and improvements.

For aficionados of classical music it may be good to know that some inconsistencies in genre/period names were adjusted.

before:
Early romantic
Expressionism
Impressionist
Late romantic
Modernist
Neoclassicism
Post-minimalist
Postmodernist
Romantic

now:
Early romanticism
Expressionism
Impressionism
Late romanticism
Modernism
Neoclassicism
Post-minimalism
Postmodernism
Romanticism

For those using Picard and my Picard genre scripts and whitelist, those will now also (re)name these genres accordingly.

[gregoirecmoi]

thank you, exactly what i was looking for 

[hiccup]

updated, added some genres