Add clang-format binaries and scripts for all platforms

.gitignore

Index: .gitignore
diff --git a/.gitignore b/.gitignore
index 02892b06aa75a34c15be2e1526e1066e0e2b0876..0b05f8a8117de9c368a64987335ce64d900bd4f9 100644
--- a/.gitignore
+++ b/.gitignore
@@ -205,6 +205,8 @@ v8.log
 /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