
Revert of original: https://codereview.webrtc.org/1187033005/ Changes in original: - Added files to gyp and BUILD - Made minor fixes to get everything to compile and intelligibility_proc to run - Added comments - Auto-reformatting New Changes: - Added <numeric> header to intelligibility_enhancer.cc to address buildbot errors - Switched to use WAV for i/o in intelligibility_proc.cc to address windows errors - clean up Note: Patch 1 duplicates Patch 7 of https://codereview.webrtc.org/1182323005/ R=andrew@webrtc.org Review URL: https://codereview.webrtc.org/1190733004. Cr-Commit-Position: refs/heads/master@{#9486}