Make Git ignore in resources more fine-grained

Just removing !*.sha1 in
https://webrtc-codereview.appspot.com/39929004
would have been too easy. This should do the job.

BUG=4267
TBR=andrew@webrtc.org
TESTED=Ran git status on a synced checkout, showed no untracked files.
touch resources/foo.sha1
Ran git status, showed the new file as untracked.

Review URL: https://webrtc-codereview.appspot.com/39039004

Cr-Commit-Position: refs/heads/master@{#8328}
git-svn-id: http://webrtc.googlecode.com/svn/trunk@8328 4adac7df-926f-26a2-2b94-8c16560cd09d
diff --git a/.gitignore b/.gitignore
index 5dc7251..5e5d459 100644
--- a/.gitignore
+++ b/.gitignore
@@ -49,7 +49,21 @@
 /links.db
 /net
 /out
-/resources
+/resources/**/*.aecdump
+/resources/**/*.bin
+/resources/**/*.chn
+/resources/**/*.dat
+/resources/**/*.gai
+/resources/**/*.jpg
+/resources/**/*.pcap
+/resources/**/*.pcm
+/resources/**/*.rtp
+/resources/**/*.rx
+/resources/**/*.wav
+/resources/**/*.yuv
+/resources/**/*.BIT*
+/resources/**/*.INP
+/resources/**/*.OUT*
 /talk/examples/android/bin
 /talk/examples/android/gen
 /talk/examples/android/libs