Add clang-format binaries and scripts for all platforms

.gitignore

 *.Makefile
 *.gypcmd
 *.mk
 *.ncb
 *.ninja
 *.opensdf
 *.props
 *.pyc
 *.rules
 *.sdf
@@ skipping 187 matching lines @@
 /third_party/aosp
 /third_party/apache-mime4j
 /third_party/asan
 /third_party/bidichecker
 /third_party/bison
 /third_party/cacheinvalidation/cacheinvalidation_unittests_run.xml
 /third_party/cacheinvalidation/src
 /third_party/chromeos_login_manager
 /third_party/chromeos_text_input
 /third_party/chromite
+/third_party/clang_format/bin/*/*
+!/third_party/clang_format/bin/*/*.sha1

[Nico, 2013/12/12 22:51:35]

Is this needed? gn doesn't have this

[ncarter (slow), 2013/12/12 23:06:45]

gn excludes everything, meaning there's a gitignore for the tracked .sha1 files
under gn. 'git add' gives warnings if you're editing ignored files, even if
they're already tracked:

"""
  D:\src\crgit2\src\tools\gn\bin\linux>git add gn.sha1
  The following paths are ignored by one of your .gitignore files:
tools/gn/bin/linux
Use -f if you really want to add them.
fatal: no files added
"""

The pattern I used avoids this, provided the wildcard */*/ doesn't somehow slow
down common git commands (I don't have evidence either way). If you concur I'd
be happy to update the gn rule.

 /third_party/cld_2/src
 /third_party/cros
 /third_party/cros_dbus_cplusplus/source
 /third_party/cros_system_api
 /third_party/cygwin
 /third_party/directxsdk
 /third_party/drmemory
 /third_party/eyesfree/src
 /third_party/ffmpeg
 /third_party/findbugs
@@ skipping 125 matching lines @@
 /webkit/data/test_shell/plugins
 /webkit/data/xbm_decoder
 /webkit/Debug
 /webkit/Release
 /webkit/renderer/media/crypto/ppapi/cdm
 /webpagereplay_logs/
 /win8/delegate_execute/delegate_execute_version_resources.xml
 /win8/metro_driver/metro_driver_version_resources.xml
 /x86-generic_out/
 /xcodebuild