Added books

Added books from the mod "The Bookshop": The Hitchhikers Guide to the
Galaxy, The Restaurant at the End of the Universe, Life the Universe and
Everything,
So Long and Thanks for All the Fish, Mostly Harmless, And Another
Thing..., Programming in Lua Second Edition, Brave New World, Roadside
Picnic, Cunninghams Encyclopedia of Magical Herbs, Gone With the Wind,
The Zombie Survival Guide: Complete Protection from the Living Dead, The
Great Gatsby, 1984, The Catcher in the Rye, For Whom the Bell Tolls, A
Clockwork Orange, The Futurological Congress, Do Androids Dream
of Electric Sheep, Lord of the Flies, The Lord of the Rings, A Brief
History of Time, Fahrenheit 451,  Slaughterhouse-Five or The Childrens
Crusade, The Man Who Mistook His Wife For A Hat, Zen and the Art of
Motorcycle Maintenance, Twenty Thousand Leagues Under the Sea, The War
of the Worlds
Added debug functions

Added functions to spawn books (key B) and newspapers/magazines (key N)