Added variables to build SDL2_ttf with HarfBuzz and added functions to

the engine to support defining the text direction and script name

include/GameEngine.h

@@ -14,6 +14,13 @@
 extern "C" {
 #endif // !__cplusplus
 
+typedef enum {
+  FONT_DIRECTION_LTR = TTF_DIRECTION_LTR,
+  FONT_DIRECTION_RTL = TTF_DIRECTION_RTL,
+  FONT_DIRECTION_TTB = TTF_DIRECTION_TTB,
+  FONT_DIRECTION_BTT = TTF_DIRECTION_BTT,
+} FontDirection;
+
 // GENERAL ENGINE API
 
 /**
@@ -80,6 +87,8 @@ TextSize get_text_size_from_font_asset(AssetID id, const char *text);
 void render_text_with_font_asset(AssetID id, const char *text, f32 x, f32 y,
                                  SDL_Color color);
 void set_font_asset_size(AssetID id, u32 size);
+i32 set_font_direction(AssetID id, FontDirection direction);
+i32 set_font_script_name(AssetID id, const char *script);
 // END RENDERING API
 
 // AUDIO API