Update UAI SDK For UAI Train

Merge pull request #43 from littleape1022/master

Debug: update base_pack_op

UAI Train support Distributed Training and UAI Inference support GPU Inference

Two major update includes:
UAI Train support Distributed Training
UAI Inference support GPU Inference

We also add some examples for tensorflow and caffe

UAI Train Support Distributed Training

Merge pull request #13 from soar-zhengjian/master

add support for dist training

Support Both UAI Inference and UAI Train

Now UAI Service has been renamed to UAI Inference
We also add several examples into uai-sdk/examples

Now UAI-SDK is compatible with Python3

Adding support for Python3

Support major operations for UAI Train

Including:
create: create new AI Train job
stop: stop AI Train Job
delete: delete AI Train Job
info: get basic running info of AI Train Job
list: get basic job info of AI Train Job/Jobs
log: get AI Train Job running log periodically
bill: get bill info of AI Train Job/Jobs
rename: change AI Train Job name
conf: get whole job info of AI Train Job
url: get TensorBoard access URL (only for TensorFlow and Keras)

Support basic operations for UAI Train Job control

Including:
Create job
List job
Get job info
Stop job
Delete job

All five AI arch supported

Add PyTorch support for UAI Train

UAI Train Support PyTorch v0.2.0

UAI Service Support Packing Docker Images

UAI Service support following AI framework pack:
TensorFlow
Keras
MXNet
Caffe

Add MXNet support for UAI Train

Now UAI Train Support:
TensorFlow 1.1.0/1.2.0
Caffe 1.0.0
Keras 2.0.8 (backend TensorFlow 1.2.0)
MXNet 0.11.0