Updated 6box logos & added ALL brazilian networks logos

gui/slick/images/network/+globosat.png

gui/slick/images/network/canal off.png

gui/slick/images/network/gnt.png

gui/slick/images/network/hbo latin america.png

gui/slick/images/network/mtv brazil.png

gui/slick/images/network/multishow.png

gui/slick/images/network/record.png

gui/slick/images/network/rede bandeirantes.png

gui/slick/images/network/rede globo.png

gui/slick/images/network/sbt.png

gui/slick/images/network/tv cultura.png

gui/slick/images/network/universal channel.png

gui/slick/images/providers/6box.png

gui/slick/images/providers/6box_me.png

gui/slick/images/providers/sixbox.png

gui/slick/images/providers/sixbox_me.png