Suggestions for Merging into TensorLayer

[zsdonghao]

Hi, I read the code, well done, and some some suggestions as follow:

• an example for training ResNet50 is great.
• there are some customised augmentation methods, could we use the existing APIs such as tl.prepro or imgaug instead?
• dataset folder can be merged into tl.files ? and use the using API format?
• use lazyimport to import cv2, so that TL will import cv2 if only if cv2 is used.