* added distgnn plus libra codebase
* Dist application codes
* added comments in partition code. changed the interface of partitioning call.
* updated readme
* create libra partitioning branch for the PR
* removed disgnn files for first PR
* updated kernel.cc
* added libra_partition.cc and moved libra code from kernel.cc to libra_partition.cc
* fixed lint error; merged libra2dgl.py and main_Libra.py to libra_partition.py; added graphsage/distgnn folder and partition script.
* removed libra2dgl.py
* fixed the lint error and cleaned the code.
* revisions due to PR comments. added distgnn/tools contains partitions routines
* update 2 PR revision I
* fixed errors; also improved the runtime by 10x.
* fixed minor lint error
* fixed some more lints
* PR revision II changed the interface of libra partition function
* rewrite docstring
Co-authored-by: Quan (Andy) Gan <coin2028@hotmail.com>
Hongzhi (Steve), Chen