Added ~/.rgb.txt.

Requested by musher0:
	"It's not required per se to use gcolor2, but having the /root/.rgb.txt link
	is a great time-saver when programming colors.

	When you click "Show saved colors" at the bottom of the gcolor2 window with
	this link enabled, you get to see 256 pre-named colors. These are actually
	color variables recognized throughout the Linux system, even by jwm. It can
	save you a lot of fidgeting with the color hexadecimals to find the color
	you want."

woof-code/rootfs-skeleton/root/.rgb.txt

@@ -0,0 +1 @@
+/usr/share/X11/rgb.txt