added Read() to Transport class

Add upstream FindMPI

Finished DataMan Transport Manager refactoring but full functionality still pending on Read API

Update pybind11

CI Fixes: master build name + test configuration type

* upstream-pybind11:
  pybind11 2017-09-14 (86e2ad4f)

PyBind11 Upstream authored 7 years ago and Atkins, Charles Vernon committed 7 years ago

Code extracted from:

    https://github.com/pybind/pybind11.git

at commit 86e2ad4f77442c3350f9a2476650da6bee253c52 (v2.2.1).

TESTING: Make binding tests able to run in parallel

Redesign the logic for C binding test with google framework.
In the future we should also add validation for binding tests.

Get AppVeyor builds working

Misc. AppVeyor tweaks