pytorch

53539567 - [Onnxifi] Copy partitioning info when lowering to glow

[Onnxifi] Copy partitioning info when lowering to glow Summary: So that Glow can use this info to do actual function partitioning. Reviewed By: jfix71 Differential Revision: D20502439 fbshipit-source-id: 0ade94b49b49172dc9370d1fc96454ade52ff269