Add Chinese text rendering support

Extend the bitmap font pipeline with the Chinese Joker glyph subset and encode supported UTF-8 text for Tonc TTE. Move the affine map clear of the expanded font, add a compile-time VRAM overlap guard, and cover every custom glyph with host tests.

include/gbalatro_sys8.h

@@ -1,9 +1,9 @@
-#ifndef GBALATRO_SYS8_FONT_H
-#define GBALATRO_SYS8_FONT_H
-
-#include <tonc.h>
-
-extern const TFont gbalatro_sys8Font;
-extern const unsigned int gbalatro_sys8Glyphs[192];
-
-#endif
+#ifndef GBALATRO_SYS8_H
+#define GBALATRO_SYS8_H
+
+#include <tonc.h>
+
+extern const TFont gbalatro_sys8Font;
+extern const unsigned int gbalatro_sys8Glyphs[];
+
+#endif