Determine the Soldiers At War palette

This commit also takes the first step towards making it configurable;
override `internal/palettes.DefaultPaletteName` at build time to choose
one palette over another. It would be nice to set this at runtime!

internal/menus/menus.go

@@ -9,7 +9,7 @@ import (
 	"strconv"
 	"strings"
 
-	"code.ur.gs/lupine/ordoor/internal/data"
+	"code.ur.gs/lupine/ordoor/internal/palettes"
 	"code.ur.gs/lupine/ordoor/internal/util/asciiscan"
 )
 
@@ -218,9 +218,9 @@ func loadProperties(menu *Menu, scanner *asciiscan.Scanner) error {
 
 		switch strings.ToUpper(k) {
 		case "BACKGROUND COLOR":
-			menu.BackgroundColor = data.ColorPalette[vInt]
+			menu.BackgroundColor = palettes.DefaultPalette()[vInt]
 		case "HYPERTEXT COLOR":
-			menu.HypertextColor = data.ColorPalette[vInt]
+			menu.HypertextColor = palettes.DefaultPalette()[vInt]
 		case "FONT TYPE":
 			menu.FontType = vInt
 		default: