Add support to patch_util.py for patches containing new files.
Add support to patch_util.py for patches containing new files.

git-svn-id: 4ff65e90c7c89c8f5eba592fcee26b49aecf64bc@971 5089003a-bbd8-11dd-ad1f-f1f9622dbc98

svn2github/midle110,svn2github/ttserver,svn2github/cef3,svn2github/ttserver,svn2github/ttserver,svn2github/cef3,svn2github/midle110,svn2github/ttserver,svn2github/midle110,svn2github/cef3,svn2github/midle110,svn2github/midle110,svn2github/cef3,svn2github/cef3,svn2github/ttserver