Import sh and python wvtest modules from open source wvtest.

Imported from commit 986215d1ac52aed4c95090c7a18cd7f4736c726a.

Arguably we should import these by adding their own git repo, but they're so
tiny and rarely-changing that it probably isn't worth it.  This keeps all
our files together nicely.

Change-Id: If5bfc90b0a701ae593690d7db98110c6c934758b
6 files changed
tree: 52fe394d75f76c4a5a0c34d7059ae529aa43372b
  1. portsh/
  2. wvtest/