Update readme feature

Modify inference lib link

modify the inference lib link

* modify annotation stript path

using 'cpplint --filter=-build/include_subdir,-build/c++11' to check cpp code style of all *.h, *.cpp

add copyright

Add mechanical meter to contrib

update linux_build.md and CMakeLists.txt

pull before pr

* fix bug

track official

2. add the description of  deployment based on cpu

* modify pspnet cityscapes iou

* add loss check