Move "waza" to separate theme package.

themes/waza/Makefile.am

themes/waza/README

themes/waza/bottom-active.xpm

themes/waza/bottom-inactive.xpm

themes/waza/bottom-left-active.xpm

themes/waza/bottom-left-inactive.xpm

themes/waza/bottom-right-active.xpm

themes/waza/bottom-right-inactive.xpm

themes/waza/close-active.png

themes/waza/close-active.xpm

themes/waza/close-inactive.png

themes/waza/close-inactive.xpm

themes/waza/close-pressed.png

themes/waza/close-pressed.xpm

themes/waza/hide-active.png

themes/waza/hide-active.xpm

themes/waza/hide-inactive.png

themes/waza/hide-inactive.xpm

themes/waza/hide-pressed.png

themes/waza/hide-pressed.xpm