Allow changing WU field state from default profile (#1049)

It's a bit confusing that the "Walkup friendly" dropdown does nothing if
you're in the default profile. We could disable the dropdown, but let's
just take the easier route and allow people to change the field.

totalRP3/Core/Player.lua

@@ -410,6 +410,7 @@ end
 
 local function ShouldAllowFieldModification(player, subtableName, fieldName)
 	return (subtableName == "character" and fieldName == "RP")
+		or (subtableName == "character" and fieldName == "WU")
 		or (not player:IsProfileDefault());
 end