Move to GYP-based project file generation (issue #48).

- Add cef_create_projects.bat to generate the CEF project files.
- Change include paths to be relative to the root CEF directory.
- Add patch_build configuration and build.patch to modify the Chromium build system for required CEF dependencies.
- Remove old .vcproj and .vsprops files.
- Eliminate use of precompiled headers.
- Commit generated project files (these will go away in the near future).

git-svn-id: https://chromiumembedded.googlecode.com/svn/trunk@50 5089003a-bbd8-11dd-ad1f-f1f9622dbc98

patch/patch_source.cfg

@@ -0,0 +1,6 @@
+# An element of this array associates a patch file with a target directory.
+# All paths in the patch file must be relative to that directory. Each patch
+# file entry should be proceeded by the code review or bug report link that it
+# relates to.
+patches = {
+}