contrib

- Uses 1.1.1 stable branch of https://github.com/openssl/openssl
  instead of https://github.com/microsoft/openssl. Note that this
  build will not pass app certification for the Windows store.
- bumps opendht to support the new OpenSSL build and removes some
  unused linkage
- adds a 'use_cmake' key to the package.json windows contrib
  build system
- allows us to shave about 4.5 min off openssl build time by
  defining MAKE_TOOL to jom.exe to override nmake
- adds /FS to force synchronous PDB writes

Change-Id: Idd06a0805b45fa19551c15d1859cbccca49e6bb6