Update to FreeType 2.4.6+

This patch updates our copy of the FreeType sources to 2.4.6+.

More precisely, it contains source code corresponding to the
state of the upstream repository at the following hash
submitted on August 16 2001:

  c3fb981e2ac79acad09d5673352646696472f55e

This corresponds to 2.4.6 with 7 more patches applied on top
of it to fix bugs in the TrueType interpreter and the CFF parser.

Change-Id: I9f3ac736d616020c8d10fd1d4e4be466f35fb6e7
diff --git a/include/freetype/ftchapters.h b/include/freetype/ftchapters.h
index 7775a6b..6cdf54e 100644
--- a/include/freetype/ftchapters.h
+++ b/include/freetype/ftchapters.h
@@ -98,6 +98,7 @@
 /*    module_management                                                    */
 /*    gzip                                                                 */
 /*    lzw                                                                  */
+/*    bzip2                                                                */
 /*    lcd_filtering                                                        */
 /*                                                                         */
 /***************************************************************************/