Add a tilesets page

[Shootnik01]

With links to popular ones like https://github.com/Theawesomeboophis/UndeadPeopleTileset

[VladicusMagnus]

Шутник, ты имеешь ввиду, для скачивания тайлов сделать отдельную вкладку? Если да, то я только за. Но бери ответственность, и собери остальные линки, ультику, ксотто, и прочие. )))

[Dlinuigh]

Well, since you can simply copy the directory and CDDA-tileset has already gathered some interesting tilesets, I suggest consulting with @I-am-Erk to remove the preloaded tileset. This would allow players to choose their preferred tileset and download it from a repository.