Add missing map.h include in color defs

(cherry picked from commit 5e13a762ec)

core/color_names.inc

@@ -1,4 +1,6 @@
 // Names from https://en.wikipedia.org/wiki/List_of_colors (through https://raw.githubusercontent.com/SuperUserNameMan/color_to_name/616a7cddafefda91478b7bc26167de97fb5badb1/godot_version.gd), slightly edited and normalized
+#include "map.h"
+
 static Map<String, Color> _named_colors;
 static void _populate_named_colors() {
 	if(!_named_colors.empty()) return;