move colors to a separate module

lua/zenbones/colors.lua

@@ -0,0 +1,16 @@
+local lush = require "lush"
+local hsluv = lush.hsluv
+
+local config = {
+	sand = hsluv(39, 12, 94),
+	stone = hsluv(230, 30, 22),
+	leaf = hsluv(103, 72, 46),
+	water = hsluv(236, 84, 40),
+	rose = hsluv(5, 70, 46),
+	wood = hsluv(28, 80, 40),
+	blossom = hsluv(318, 42, 42),
+}
+
+config.white = config.sand.li(58)
+
+return config