The pathlib module is for Object-oriented filesystem paths
It also provides a lot of handy utilities for checking on
paths. This seems to justify adding it to the core package
along side os, sys, and the other *path libraries.
[YOCTO #13670]
Signed-off-by: Tim Orling <timothy.t.orling@linux.intel.com> Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org> Signed-off-by: Steve Sakoman <steve@sakoman.com>