ANRdaemon: add README and a bash script to easily get trace. am: 9e90477a67 am: 4b7f0b27a2 am: 27879586ff
am: 0827d1d4ee

* commit '0827d1d4ee083a7ea6523593ef35bdb26d4d16c3':
  ANRdaemon: add README and a bash script to easily get trace.

Change-Id: If0de17a3ef7007591d61bf769ff102ce3925dfc4