Adding make_disk_image subcommand.
am: 159e172053

Change-Id: If1fb30d77d1589563d51239b1473474adbbccbfe
tree: 7b08f7a115bf125eff5b50dd69132b9a78fff1b6
  1. test/
  2. Android.mk
  3. bpt_test
  4. bpt_unittest.py
  5. bpttool
  6. README